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Which one is the correct order of the size of the iodine species?

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I > I⁺ > I^–

I > I^- > I⁺

I⁺ > I^– > I

I^- > I > I⁺

answer is D.

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Detailed Solution

Cation has the smallest size due to greater z-effective. Size is inversely proportional to z-effective which is directly proportional to the positive charge.

Thus the size of anion>size of element>size of cation

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