MCQ
The group having isoelectronic species is :
- ✓$O^{-2} , F^-, Na^+, Mg^{2+}$
- B$O^-, F^-, Na, Mg^+$
- C$O^{-2} , F^-, Na, Mg^{2+}$
- D$O^-, F^-, Na^+, Mg^{2+}$
✓
Answer
Correct option: A.
$O^{-2} , F^-, Na^+, Mg^{2+}$
a
Isoclectronic species have the same number of electrons. The following ionic species are isoclectronic.
Isoclectronic species have the same number of electrons. The following ionic species are isoclectronic.
$\begin{array}{lcc}\hline \text { Ions } & {\text { Atomic number }} & {\text { Number of electrons }} \\ \hline 0^{2-} & {8} & {10} \\ {\mathrm{F}^{-}} & {9} & {10} \\ {\mathrm{Na}^{+}} & {11} & {10} \\ {\mathrm{Mg}^{2+}} & {12} & {10} \\ \hline\end{array}$
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