Atomic radii of group 15 elements is of the order

N>P>As>Bi>Sb

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N>P>As>Sb>Bi

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N<P<As<Sb<Bi

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N<P<As<Sb>Bi

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Solution

The correct option is C N<P<As<Sb<Bi
This increase in atomic radii from N to Bi is due to the corresponding increase in the highest principal quantum number for each succeeding element. Thus option C is the correct one.

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