Question

$M{g}^{2+}$ is isoelectronic with

• A. $C{a}^{2+}$
• B. $N{a}^{+}$
• C. $Z{n}^{2+}$
• D. $C{u}^{2+}$

Answer 1

Answer: (B)

Isoelectronic species have same number of electron. $M{g}^{2+}$ and $N{a}^{+}$ both have 10 electrons hence, they are isoelectronic species.