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  • Which one is the correct order of the size of the iodine speciesOption: 1 I > I+ > I-<div class='qna-option

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

Option: 1

I > I+ > I-


Option: 2

I > I- > I+


Option: 3

I+ > I- > I


Option: 4

I- > I > I+ 


Answers (1)

best_answer

As we have learnt, for any element

Anionic Size > Atomic Size > Cationic Size

This is because of the change in effective nuclear charge. Electron gain decreases effective nuclear charge while Ionisation increases effective nuclear charge.

So, the correct order is 

I^-> I > I^+

Posted by

shivangi.bhatnagar

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