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Which one of the following is correct or...

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

A

`I gt I^(-) gt I^(+)`

B

`I^(-) gt I gt I^(+)`

C

`I^(+) gt I gt I^(-)`

D

`I^(-) gt I^(+) gt I`

Text Solution

Verified by Experts

The correct Answer is:
B
`I^(-) gt I gtI^(+)`. As the number of electron decreases (but proton number remains same) so effective nuclear charge increases and so size decreases.
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