Question

The group having isoelectronic species is :

• A. $O^{2-},F^{-},Na,M{g}^{2+}$
• B. $O^{-},F^{-},N{a}^{+},M{g}^{2+}$
• C. $O^{2-},F^{-},N{a}^{+},M{g}^{2+}$
• D. $O^{-},F^{-},Na,M{g}^{+}$

Answer 1

Answer: (C)

$M{g}^{2+},N{a}^{+},O^{2-}$ and $F^{-}$ all have 10 electrons each.