# Question #de0ab

The common ions, $N {a}^{+} , M {g}^{2 +} , A {l}^{3 +} , {N}^{3 -} , {O}^{2 -} , {X}^{-}$ ARE ALL isoelectronic with the last or the next Noble Gas......i.e. $\text{neon}$ or $\text{argon}$.......Of course, here the net charge on the ion means that they commonly occur as ionic species with their charge complemented by ions of equal and opposite electric charge.