Question

Which of the following is isoelectronic series -

• A. $\mathrm{Li}{}^{+1},\mathrm{O}{}^{-2},\mathrm{Mg}{}^{+2}$
• B. $\mathrm{Mg}{}^{+2},\mathrm{Na}{}^{+},\mathrm{F}{}^{-},\mathrm{N}{}^{-3}$
• C. $\mathrm{Ca}{}^{+2},\mathrm{Mg}{}^{+2},\mathrm{Cl}{}^{-}$
• D. $\mathrm{Cl}{}^{-},\mathrm{O}{}^{-2},\mathrm{Mg}{}^{+2}$

Answer 1

Answer: (B)

Correct answer is (b) $\mathrm{Mg}{}^{+2},\mathrm{Na}{}^{+},\mathrm{F}{}^{-},\mathrm{N}{}^{-3}$