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The least stable in amongst the followin...

The least stable in amongst the following is :

A

`Li^(+)`

B

`Be^(-)`

C

`B^(-)`

D

`C^(-)`

Text Solution

Verified by Experts

The correct Answer is:
B, C, D
`Be^(-1)` is the least stable ion `Be(1s^(2) 2s^(2))` has stable electronic configuration, addition of electron decreases stability.
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