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The least stable ion among the following...

The least stable ion among the following is

A

`Li^(+)`

B

`Be^(-)`

C

`B^(-)`

D

`C^(-)`

Text Solution

Verified by Experts

Be has fully filled 2s-subshell `(2s^(2))` and therefore, show least tendency to accept an electron. Thus, `Be^(-)` is least stable.
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