# Question #55d62

You have a discrete oxide anion, ${O}^{2 -}$........
The oxide anion has an electronic configuration equivalent to that of neon. While oxide salts are very reactive, certainly I can isolate alkali and alkaline earth metal oxides, i.e. ${M}_{2} O$, and $M O$. Thus we do not speak of antibonding electrons in the oxide anion.