Question

Question #67e72

Answer 1

Ionic compounds do not actually satisfy the octet rule.

The octet rule is that atoms of elements are most stable when the valence shell of `s^2` and `p^6` are filled with eight electrons, making the atom like a noble gas.

In order to accomplish this atoms release or take on electrons to fill these shells.

For example Calcium (`1s^2 2s^2 2p^6 3s^2`) will readily lose the `3s^2` electrons and becomes a `Ca^+2` cation.
Fluorine (`1s^2 2s^2 2p^5`) will readily take on an electron to fill `2p^6` and become a `F^(-)` anion.

In becoming ions the atoms fulfill the rule of octet.

Now as ions the `Ca^(+2)` cation and the `F^(-)` anion, have an electric attraction of opposites to become a `CaF_2` ionic compound.

I hope this was helpful.
SMARTERTEACHER