Thread: About the size of the atom. View Single Post
 P: 378 About the atomic radius, as a starter it was mentioned (and correct me if am wrong) that: Rcation < Ratom< Ranion (And we'll know the size of the atom based on these) Then it was mentioned that: Radius of atom of a certain element increase if we walk straight downwards along a column in the periodic table. And afterwards: if Z of any element is less than Z of any other one then the radius of the first is greater than the 2nd. How come? I really don't get it? Any chemical, physical explanation (most importantly to the 3rd pt)