According to molecular orbital theory, w...

According to molecular orbital theory, which of the following will not be a viable molecule?

A

`H_(2)^(-)`

B

`H_(2)^(2-)`

C

`He_(2)^(2+)`

D

`He_(2)^(+)`

Verified by Experts

The correct Answer is:

B

`H_(2)^(2-)` does not exist as Bond order is zero
Electronic configuration of `H_(2)^(2-) : sigma_(1s)^(2) sigma***_(1s)^(2) " " B.O=(2-2)/(2)=0`

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