The isoelectronic set of ions is:

Question:

The isoelectronic set of ions is:

  1. $\mathrm{N}^{3-}, \mathrm{Li}^{+}, \mathrm{Mg}^{2+}$ and $\mathrm{O}^{2-}$

  2. $\mathrm{Li}^{+}, \mathrm{Na}^{+}, \mathrm{O}^{2-}$ and $\mathrm{F}^{-}$

  3. $\mathrm{F}^{-}, \mathrm{Li}^{+}, \mathrm{Na}^{+}$and $\mathrm{Mg}^{2+}$

  4. $\mathrm{N}^{3}-\mathrm{O}^{2-}, \mathrm{F}^{-}$and $\mathrm{Na}^{+}$


Correct Option: , 4

Solution:

 

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