The size of Na^(o+) ion is same as that ...

The size of `Na^(o+)` ion is same as that of

A

`Li^(+)`

B

`Mg^(+2)`

C

`Ca^(+2)`

D

`Ba^(+2)`

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The correct Answer is:

B

Electrons in `Na^(+)=11-1=10`
Electron in `Mg^(+)` =12-2=10

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