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: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the reason why the smallest atom of all , the element with the smallest atom is not hydrogen , it 's helium . helium is actually smaller than hydrogen , depending on how you , depending on what technique you use to measure it . that 's because , if we take the simplest case , hydrogen , you have 1 proton in the... | sal says that helium is smaller than hydrogen because it has 2 electrons oin the valence shell but in the case of helium , how can the nucleus attract the valence electrons , it is a noble gas please explain ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well if you get larger as you go down , that means you 're getting smaller as you go up . you get smaller , smaller as you go up . so , what are going to be , what 's going to be the smallest ones ? | why does the size of the atom become smaller as the protons increase ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | but there 's some probability that the electrons are in this area right over here and some probability that the electrons are in this area over here , and let 's say even a lower probability that the electrons are over this , like this over here . and so you might say , well at a moment the electron 's there . the oute... | i was wondering that if mass is defined as the amount of matter in a body and we also say that electron has a mass of 9.11*10 ( -31 ) ( i hope you read this in the scientific notation ) , then would n't it mean that electrons , protons and neutrons have some kind of a sub-electron or sub-proton or a sub-nucleus ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well , when you 're at potassium , you have 19- 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 . you have 19 protons and you have 19 electrons . well i 'll just draw those . | that electrons , protons and neutrons are not the `` building blocks '' of matter ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | so is the atomic radius proportional to electronegativity ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | i 'm a bit unclear about why the atomic radius decreases across the periods , and increases down the columns ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so these are all different ways of thinking about it . now , with that out of the way , let 's think about what the trends for atomic size or atomic radii would be in the periodic table . so the first thing to think about is what do you think will be the trend for atomic radii as we move through a period . | who has more atomic radii k or ca and why ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | you have 36 . you have a positive charge of 36 . let me write that , you have plus 36 . | what is the effective nuclear charge ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | can someone explain briefly the difference between fission and fusion ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so , that 's the trend as we go to the right , as we go from the left to the right of the periodic table , we 're getting smaller . now what do you think is going to happen as we go down the period table ? as we go down the periodic table in a given group ? well , as we go down a group , each new element down the group... | sal said that when you go down the periodic table the atomic radius increases but when you just label the elements in a line like hydrogen , helium , litium , beryilium , etc is n't going to the right is essentially same with going in down in the periodic table ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | and because of that , that outer most shell is going to drawn in . krypton is going to be smaller , is going to have a smaller atomic radius than potassium . so the trend , as you go to the right is that you are getting , and the general trend i would say , is that you are getting smaller as you go to the right in a pe... | what is the difference of moving a element to the right like carbon nitrogen and going from argon to potassium to the bottom ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | why does the atomic radius suddenly increase when you go down ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | as we go down the group the atomic size increases because of increasing number of shells ... .similarly atomic size should also increase across the period as the orbitals also increase across the period ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so , what are going to be , what 's going to be the smallest ones ? well , we 've already said helium is the smallest . so what are going to be some of the largest ? | sal said about istopes of helium but are their isotopes of noble gases too ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | now what do you think is going to happen as we go down the period table ? as we go down the periodic table in a given group ? well , as we go down a group , each new element down the group , we 're adding , we 're in a new period . | is the greater mass of additional protons and neutrons contribute to the reason why a atoms radii reduces as you move towards the right side of the periodic table ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | and if you could figure out that distance , that closest , that minimum distance , without some type of , you know , really , i guess , strong influence happening here , but just the minimum distance that you might see between these 2 and then you could take half of that . so that 's one notion . that 's actually calle... | why is n't hydrogen smaller with the one proton attracting the one electron ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | we 're adding a new shell . so you 're adding more and more and more shells . here you have just the first shell , now the second shell and each shell is getting further and further and further away . | are s shells all the same relative size ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so you 're adding more and more and more shells . here you have just the first shell , now the second shell and each shell is getting further and further and further away . so as you go down the periodic table , you are getting , you are getting larger . | take d1 to be the distance between an s2 and s1 shell and d2 to be the distance between an s3 and s2 shell , does d1=d2 ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | if we were to compare calcium to sodium which radius would be bigger ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | then the radius could be there . so electrons , these orbitals , these diffuse probability distributions , they do n't have a hard edge , so how can you say what the size of an atom actually is ? there 's several techniques for thinking about this . | my problem overall is determining what influences more on the size of an atom , is it higher energy level ( more shells ) or is it having less valence electrons ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the trend , as you go to the right is that you are getting , and the general trend i would say , is that you are getting smaller as you go to the right in a period . that 's the reason why the smallest atom of all , the element with the smallest atom is not hydrogen , it 's helium . helium is actually smaller than h... | how does each atom characterize with such properties and how we can predict their properties ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | but when we think of increasing atomic size with addition of more orbitals and therefore electrons , should n't krypton have a larger radius than potassium ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so , what are going to be , what 's going to be the smallest ones ? well , we 've already said helium is the smallest . so what are going to be some of the largest ? | i 'm asking because he said that helium has an inward pull , so definitely the combined charge of the protons should be greater than the electrons , right ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so a covalent bond , we 've already- we 've seen this in the past . the most famous of covalent bonds is well , a covalent bond you essentially have 2 atoms . so that 's the nucleus of one . | http : //periodictable.com/properties/a/covalentradius.v.log.html how have the covalent radii of every element been found when there are elements like potassium , magnesium or helium which do not form homodiatomic covalent molecules ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | what do you think is going to be the trend here ? and if you want to think about the extremes , how do you think potassium is going to compare to krypton in terms of atomic radius . i encourage you to pause this video and think about that on your own . | how can you compare two elements in terms of atomic radius that are in different periods and groups ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so , that 's the trend as we go to the right , as we go from the left to the right of the periodic table , we 're getting smaller . now what do you think is going to happen as we go down the period table ? as we go down the periodic table in a given group ? | for instance bromine and silicon , bromine is closer to the end of its period but silicon is a period higher , which would be bigger ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | would another method of determining the radius of an atom be to find the ( say ) 95 % probability sphere that all the electrons are most likely to be in at a given moment , and then finding the radius of that ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | but there 's some probability that the electrons are in this area right over here and some probability that the electrons are in this area over here , and let 's say even a lower probability that the electrons are over this , like this over here . and so you might say , well at a moment the electron 's there . the oute... | so , if i understood this correctly , the force of attraction between an electron and a proton is greater than the force of repulsion between an electron and another electron ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well if you get larger as you go down , that means you 're getting smaller as you go up . you get smaller , smaller as you go up . so , what are going to be , what 's going to be the smallest ones ? | why do the element sizes get smaller from the bottom left to top right ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the trend , as you go to the right is that you are getting , and the general trend i would say , is that you are getting smaller as you go to the right in a period . that 's the reason why the smallest atom of all , the element with the smallest atom is not hydrogen , it 's helium . helium is actually smaller than h... | ls thehydrogen atom the smallest ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 1 electron right over there , you have 19 , yeah , you have 19 protons . so , you have some , i guess you could say coulom force that is attracting it , that is keeping it there . but if you go to krypton , all of a sudden you have much more positive charge in the nucleus . | sal mentions coulom force , what is that ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | how are elements made artificially in labs ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? they 're bonded to each other through a covalent bond . | which are two atoms of the same element that are bonded called : molecules , or diatoms ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's because , if we take the simplest case , hydrogen , you have 1 proton in the nucleus and then you have 1 electron in that 1s shell , and in helium you have 2 , 2 protons in the nucleus and i 'm not drawing the neutrons and obviously there 's different isotopes , different numbers of neutrons , but you have 2 el... | so i guess you could say the smaller the atom is the more ionic energy will be needed to remove an electron ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so these are all different ways of thinking about it . now , with that out of the way , let 's think about what the trends for atomic size or atomic radii would be in the periodic table . so the first thing to think about is what do you think will be the trend for atomic radii as we move through a period . | how can we say that the atomic radii decreases across the period from left to right when we know that noble gases have the biggest size in their respective periods ( with the exception of helium ) ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | and you have 36 electrons , you have 36 electrons- i do n't know , i 've lost track of it , but in your outermost shell , in your fourth , you 're going to have the 2s and then you 're going to have the 6p . so you have 8 in your outermost shell . so that 'd be 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 . | why kr has 8 electrons in the outermost shell , not 18 ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | here you have just the first shell , now the second shell and each shell is getting further and further and further away . so as you go down the periodic table , you are getting , you are getting larger . you 're having a larger atomic radius depending on how you are measuring it . so what 's the general trend ? | why do noble gases have a larger size than preceding halogens ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well if you get larger as you go down , that means you 're getting smaller as you go up . you get smaller , smaller as you go up . so , what are going to be , what 's going to be the smallest ones ? | why does the atomic radius get smaller if an element loses an electrons ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | carbon or bromine and why ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? | what is the second method called ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | and because of that , that outer most shell is going to drawn in . krypton is going to be smaller , is going to have a smaller atomic radius than potassium . so the trend , as you go to the right is that you are getting , and the general trend i would say , is that you are getting smaller as you go to the right in a pe... | which what have a smaller radius : element k or element k+ ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so one way to think about it , if you have more positive charge in the center , and you have more negative charge on that outer shell , so that 's going to bring that outer shell inward . it 's going to have more i guess you could imagine one way , more coulomb attraction right over there . and because of that , that o... | sal mentions coulomb attraction ; exactly what is that ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 1 electron right over there , you have 19 , yeah , you have 19 protons . so , you have some , i guess you could say coulom force that is attracting it , that is keeping it there . but if you go to krypton , all of a sudden you have much more positive charge in the nucleus . | what is coulom force 9 ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the center of that circular object and the edge of it . so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they im... | so the largest atom there would be fr in the lower left , right ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the nucleus of the other . and they 're sharing electrons . so their electron clouds actually , their electron clouds actually overlap with each other , actually overlap with each other so the covalent bond , there the electrons in that bond could spend some of their time on this atom and some of their time on ... | do electrons in the same shell shield each other any appreciable amount , or do they only shield electrons in `` higher '' electron shells ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so these are all different ways of thinking about it . now , with that out of the way , let 's think about what the trends for atomic size or atomic radii would be in the periodic table . so the first thing to think about is what do you think will be the trend for atomic radii as we move through a period . so let 's sa... | in other words , do the noble gasses have the smallest radii in their periods , or do their complete outer shells expand their radii due to shielding ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 'd be 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 . so one way to think about it , if you have more positive charge in the center , and you have more negative charge on that outer shell , so that 's going to bring that outer shell inward . it 's going to have more i guess you could imagine one way , more coulomb attraction r... | how come when an atom have more positive charge in the center , and have more negative charge on the outer shell would happen to bring the outer shell closer to the center , compare to others that have less negative charge on the outer shell ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the nucleus of the other . and they 're sharing electrons . so their electron clouds actually , their electron clouds actually overlap with each other , actually overlap with each other so the covalent bond , there the electrons in that bond could spend some of their time on this atom and some of their time on ... | why does not the coulomb force make the electrons fall into the nuclei ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in this orbit right over here , just kind of orb... | electrons move around the nucleus.. circularly elliptically or randomly ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? they 're bonded to each other through a covalent bond . so a covalent bond , we 've already- we 've seen this in the past . | is not the contently bonded measurement inaccurate ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? | will not the radius be less than what it actually is because of attraction between the atoms ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? | can someone please explain the difference between 1 ) van der waals radius 2 ) ionic radius 3 ) covalent radius ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | what do scientists use the atomic radius for ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | but there 's some probability that the electrons are in this area right over here and some probability that the electrons are in this area over here , and let 's say even a lower probability that the electrons are over this , like this over here . and so you might say , well at a moment the electron 's there . the oute... | also why does n't the electron just collide into the proton ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | how do you account for the overlap while calculating each atom 's individual atomic radius ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | b ) why do we even need to attempt to calculate atomic radius if we can not positively determine how far from the nucleus the farthest electron will be placed ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the nucleus of the other . and they 're sharing electrons . so their electron clouds actually , their electron clouds actually overlap with each other , actually overlap with each other so the covalent bond , there the electrons in that bond could spend some of their time on this atom and some of their time on ... | if each shell holds 8 electrons , ( except for 1s ) , why is it that the `` d '' subshell holds 10 electrons ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the nucleus of the other . and they 're sharing electrons . so their electron clouds actually , their electron clouds actually overlap with each other , actually overlap with each other so the covalent bond , there the electrons in that bond could spend some of their time on this atom and some of their time on ... | how can electrons be outside of its orbital randomly if it did n't get energy to move up energy levels from any other external source ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so one way to think about it , if you have more positive charge in the center , and you have more negative charge on that outer shell , so that 's going to bring that outer shell inward . it 's going to have more i guess you could imagine one way , more coulomb attraction right over there . and because of that , that o... | is coulomb force merely magnetic attraction ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | since electrons move in orbitals , which are based on probability and not concrete facts , would n't the atomic radius vary with time ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the trend , as you go to the right is that you are getting , and the general trend i would say , is that you are getting smaller as you go to the right in a period . that 's the reason why the smallest atom of all , the element with the smallest atom is not hydrogen , it 's helium . helium is actually smaller than h... | why did jay not specifically tell which atom was the largest or has the largest radius as he told the smallest atom was helium ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | then you start back filling into the 3d subshell and then you start filling again in 4p1 and so forth . you start filling out the p subshell . so as you go from potassium to krypton , you 're filling out that outermost fourth shell . | what is the difference between 's and p block elements ' and 'd and f block elements ' ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | now what do you think is going to happen as we go down the period table ? as we go down the periodic table in a given group ? well , as we go down a group , each new element down the group , we 're adding , we 're in a new period . | how does density varies in the periodic table ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well if you get larger as you go down , that means you 're getting smaller as you go up . you get smaller , smaller as you go up . so , what are going to be , what 's going to be the smallest ones ? | what about argon it has nearly the same size as sodium , argon ought to be smaller because it has more electrons in the valance shell as compared to sodium ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | why do radius shrink when the increase in proton and electron are equal ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the center of that circular object and the edge of it . so the length of this line right over here . that would be the radius . | why does sal make a diagonal line ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? | can we actually compare inert gases and alkali metals ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well if you get larger as you go down , that means you 're getting smaller as you go up . you get smaller , smaller as you go up . so , what are going to be , what 's going to be the smallest ones ? | what if we have to compare the atomic radii between two elements which are placed in a diagonal way such as n and cl or li and mg. how do we get to know which one is bigger or smaller ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | is the ionization energy increase ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? | when we talk about the van der waals radius , noble gases like ne have the greatest atomic radius.why is this so ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | do pure oxygen ( o2 ) follow the octet rule ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | they are in orbitals which are really just probability distributions of where the electrons can be , but they 're not that well defined . so , you might have an orbital , and i 'm just showing you in 2 dimensions . it would actually be in 3 dimensions , where maybe there 's a high probability that the electrons where i... | why f- orbital shows poor shielding effect ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | electrons are not in orbits the way that planets are in orbit around the sun and we 've talked about this in previous videos . they are in orbitals which are really just probability distributions of where the electrons can be , but they 're not that well defined . so , you might have an orbital , and i 'm just showing ... | why does the shielding effect of orbitals goes on decreasing from s to f ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | similarly for ionic radius - how would you compare the radii of ca ( 2+ ) , k ( + ) and cl ( - ) ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well if you get larger as you go down , that means you 're getting smaller as you go up . you get smaller , smaller as you go up . so , what are going to be , what 's going to be the smallest ones ? | so just to clarify , in a period , the right-most atoms will have the smaller atomic radii because the larger number of protons attracts the outermost electrons toward it , making it smaller , correct ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | can noble gases become reactive under special conditions ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | what is the equation to finding the atomic radius of an element ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | it would actually be in 3 dimensions , where maybe there 's a high probability that the electrons where i 'm drawing it in kind of this more shaded in green . but there 's some probability that the electrons are in this area right over here and some probability that the electrons are in this area over here , and let 's... | how are scientists able to calculate the number of electrons if they exist in a probability space ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? they 're bonded to each other through a covalent bond . so a covalent bond , we 've already- we 've seen this in the past . the most famous of covalent bonds is well , a covalent bond you essentially have 2 ... | as for argon for example how can i use the covalent bond to know its radius since it is stable ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the trend , as you go to the right is that you are getting , and the general trend i would say , is that you are getting smaller as you go to the right in a period . that 's the reason why the smallest atom of all , the element with the smallest atom is not hydrogen , it 's helium . helium is actually smaller than h... | is frankium ( fr ) the largest atom even though its radioactive and unstable ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | why hydrogen do not have the smallest atomic radius ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | does n't it violate the trend that the atomic size of an atom decreases on moving from left to right in a period ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | is the number of electron shells or the number of protons more effective in determining an atom 's radius ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | : let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . | as sal says that when we move from left to right along a period the atomic size decreases..but does n't the shielding effect take place causing the attractive forces to be less on the electrons of the outer shell ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | well i 'll just draw those . 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , but you only have 1 electron in that outermost , in that fourth shell , so let 's just say that 's that electron at a moment , just for visually . it does n't necessarily have to be there but just to visualize ... | would the model of electron you describe as incorrect be the bohr model ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so the length of this line right over here . that would be the radius . and so a lot of people when they conceptualize an atom they imagine a positive nucleus with the protons in the center right over here then they imagine the electrons on these fixed orbits around that nucleus so they might imagine some electrons in ... | i understand the trend but where exactly do you explain how to measure the radius of an atom ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so that 's one notion . that 's actually called the van der waals radius . another way is well what about if you have 2 atoms , 2 atoms of the same element that are bonded to each other ? | how we can find the van der waals radius of atoms because the electrons in either atom would repell ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so as you go down the periodic table , you are getting , you are getting larger . you 're having a larger atomic radius depending on how you are measuring it . so what 's the general trend ? | why does the atomic radius get larger as you go down a group ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | but there 's some probability that the electrons are in this area right over here and some probability that the electrons are in this area over here , and let 's say even a lower probability that the electrons are over this , like this over here . and so you might say , well at a moment the electron 's there . the oute... | does the atomic effect by the electron configuration like electron affinity and ionization energy ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | then you start back filling into the 3d subshell and then you start filling again in 4p1 and so forth . you start filling out the p subshell . so as you go from potassium to krypton , you 're filling out that outermost fourth shell . | for example , filling s orbital or half p orbital will have smaller radii ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so you have more , i guess you could say , you could have more coulomb attraction here . this is plus 2 and then these 2 combined are negative 2 . they 're going to be drawn inward . | which one of the 2 methods for determining the atomic radius is more accurate ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the nucleus of the other . and they 're sharing electrons . so their electron clouds actually , their electron clouds actually overlap with each other , actually overlap with each other so the covalent bond , there the electrons in that bond could spend some of their time on this atom and some of their time on ... | but why include 3d electron as core electrons shielding 4s electrons when 3d electron are farthest out ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so these are all different ways of thinking about it . now , with that out of the way , let 's think about what the trends for atomic size or atomic radii would be in the periodic table . so the first thing to think about is what do you think will be the trend for atomic radii as we move through a period . | sal said as we move towards left to right in the modern periodic table the atomic size decreases , so why is the argon atom larger than the chlorine atom ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so these are all different ways of thinking about it . now , with that out of the way , let 's think about what the trends for atomic size or atomic radii would be in the periodic table . so the first thing to think about is what do you think will be the trend for atomic radii as we move through a period . | sal said as we move towards left to right in the modern periodic table the atomic size decreases , so why is the argon atom larger than the chlorine atom ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | that 's the nucleus of the other . and they 're sharing electrons . so their electron clouds actually , their electron clouds actually overlap with each other , actually overlap with each other so the covalent bond , there the electrons in that bond could spend some of their time on this atom and some of their time on ... | are the electrons filled in the shells k , l , m , n , o ... ... { and so on } this way ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , but you only have 1 electron in that outermost , in that fourth shell , so let 's just say that 's that electron at a moment , just for visually . it does n't necessarily have to be there but just to visualize that . so that 1 electron rig... | why do most elements have a black outline but ununseptium dose n't ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | we 're adding a new shell . so you 're adding more and more and more shells . here you have just the first shell , now the second shell and each shell is getting further and further and further away . | i ) are the radii of principle quantum shells & the distance between two successive principle quantum shells a constant among all the elements ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | you have a positive charge of 36 . let me write that , you have plus 36 . here you have plus 19 . and you have 36 electrons , you have 36 electrons- i do n't know , i 've lost track of it , but in your outermost shell , in your fourth , you 're going to have the 2s and then you 're going to have the 6p . | plus iii ) does the difference of distance between same quantum shells of successive atoms have a ratio ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so one way to think about it , if you have more positive charge in the center , and you have more negative charge on that outer shell , so that 's going to bring that outer shell inward . it 's going to have more i guess you could imagine one way , more coulomb attraction right over there . and because of that , that o... | when sal says that the electrons are experiencing a larger `` coulomb attraction '' , is that the same as saying there is a larger electrostatic force of attraction between the nucleus and the valence electron ? |
: let 's think a little bit about the notion of atomic size or atomic radius in this video . at first thought , you might think well this might be a fairly straight-forward thing . if i 'm trying to calculate the radius of some type of circular object i 'm just thinking about well what 's the distance between the cent... | so one way to think about it , if you have more positive charge in the center , and you have more negative charge on that outer shell , so that 's going to bring that outer shell inward . it 's going to have more i guess you could imagine one way , more coulomb attraction right over there . and because of that , that o... | sal says there is more of a coulomb attraction , what is that ? |
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