Which one of the following ion is smallest in size?

B r^{-}

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C s^{+}

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N^{3 -}

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R b^{+}

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Solution

The correct option is C $N^{3 -}$
All the given elements have noble gas configuration
But $N^{3 -}$ belongs to second period and thus is the smallest as size decreases down the group.

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Similar questions

Which of the following ion is smallest in size?

C s^{+}, B a^{2 +}, T e^{2 -}, X e I^{-}

N^{3 -}

N 3 -

H^{+}

H +

T e 2 < I - < X e < C s + < B a 2 +

Which one of the following ions will be smallest in size?

{C s}_{a q}^{+} < {R b}_{a q}^{+} < K_{a q}^{+} < {N a}_{a q}^{+}

L i^{+} > N a^{+} > K^{+} > R b^{+} \geq C s^{+}

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