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Question

Chemistry Question on Classification of elements & periodicity in properties

Which one of the following ion has the highest value of ionic radius ?

A

Li+Li^+

B

B3+B^{3+}

C

O2−O^{2-}

D

F−F^-

Answer

O2−O^{2-}

Explanation

Solution

O2−O^{2-} has the highest value of ionic radius as this can be explained on the basis of z/ez/e nuclear chargeno.of electron\frac{nuclear \, charge}{no. of \, electron} when z/ez/e ratio increases, the size decreases and when z/ez/e ratio decreases, the size increases.