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  • In which of the following pairs, the ions are iso-electronic? (i) Na^{+}, Mg^{2+} (ii) Al^{3+}, O^{-} (iii) Na^{+}, O^{2-} (iv) N^{3-}, Cl^{-}

In which of the following pairs, the ions are iso-electronic?

(i) Na^{+}, Mg^{2+}

(ii) Al^{3+}, O^{-}

(iii) Na^{+}, O^{2-}

(iv) N^{3-}, Cl^{-}

Answers (1)

The answer is the options (i) and (iii) because in order for the ions to be iso-electronic, they must have the same number of electrons.

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infoexpert22

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