Question

when Na lost e it shrank and the CI+ grew in size does that say anything about the location of the electrons before and after it was transferred

Answer 1

We know that electrons are occupied on a cloud surrounding the nucleus. So which means that the bigger the electron cloud, the bigger the number of electrons. So in this case, since Na shrank so it lost some electrons. And since Cl+ grew in size of the electron cloud so electron was added to it.