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O^(2-) is isoelectronic with...

`O^(2-)` is isoelectronic with

A

`Zn^(2+)`

B

`Mg^(2+)`

C

`K^(+)`

D

`Ni^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
B
`O^(2-) "is isoelectronic with" Mg^(+2)`
`O^(2-)to8+2=10e^(-)`
`Mg^(+2)to12-2=10e^(-)`
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