Which is smallest in size

O^2-

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C^4-

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F^-

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N^3-

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Solution

The correct option is C
F^-

As the nuclear charge per electron is maximum in $F^{-}$ . Therefore it is smallest in size.

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Arrange the following in increasing order of the atomic sizes and give reasons

Na⁺ , Mg²⁺ , Al³⁺ , F^- , O^2- , C^4-

O_{2}

C_{4} H_{10 (g)} + O_{2 (g)} \to {C O}_{2 (g)} + H_{2} O (g)

Which particle is smallest in size?

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