Question

Question #f22bd

Answer 1

Electrons transfer to the more electronegative atom in this case, but both ions formed have noble gas configuration.

Explanation:

In an ionic compound, the more electronegative atom will gain the electron from the less electronegative atom, but as a result, both ions formed will have the noble gas electron configuration.

Here is an example:

sodium, Na: `1s^2 2s^2 2p^6 3s^1`

chlorine, Cl: `1s^2 2s^2 2p^6 3s^2 3p^5`

After transfer of an electron to the more electronegative Cl, two ions result:

sodium, `Na^+`: `1s^2 2s^2 2p^6`

chloride, `Cl^-`: `1s^2 2s^2 2p^6 3s^2 3p^6`

Both ions have `s^2 p^6` outer electrons.