MCQ
The triad which is isoelectronic:
- ✓$\mathrm{Na}^{+}, \mathrm{O}^{2-}, \mathrm{Ne}$
- B$\mathrm{Na}^{+}, \mathrm{Al}, \mathrm{N}^{3-}$
- C$\mathrm{Cl}^{-}, \mathrm{Ar}, \mathrm{Ca}$
- D$\mathrm{Mg}^{2+}, \mathrm{F}^{-}, \mathrm{O}$
✓
Answer
Correct option: A.
$\mathrm{Na}^{+}, \mathrm{O}^{2-}, \mathrm{Ne}$
Isoelectronic Species are those atoms which have the same electronic configuration or same number of electrons. For eg$- \mathrm{N}^{3-}, \mathrm{O}^{2-}, \mathrm{F}^{-}, \mathrm{Ne}, \mathrm{Na}^{+}, \mathrm{Mg}^{2+}, \mathrm{Al}^{3+}$ are a series of isoelectronic species.
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