# Question #44c0d

However, there is isoelectronic ions, such as: $N {a}^{+} , M {g}^{2 +} , {F}^{-} , {O}^{2 -} \mathmr{and} {N}^{3 -}$. All these ions have $10 \text{ electrons}$, therefore, they are called isoelectronic ions .