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Which of the following species does not ...

Which of the following species does not exist under normal condition ?

A

`Li_(2)`

B

`Be_(2)^(+)`

C

`Be_(2)`

D

`B_(2)`

Text Solution

Verified by Experts

The correct Answer is:
C
`Be_(2) = sigma _(1s)^(2) sigma _(1s)^(**2) sigma_(2s)sigma _(2s)^(**2)B.O. = 0 ` ,
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