What would be the electronic configuration of HeH^(-) molecular ion ? Calculateits bond order and comment on its stability .

What would be the electronic configuration of HeH^(-) molecular ion ?

1.	What would be the electronic configuration of HeH^(-) molecular ion ? Calculateits bond order and comment on its stability .
Answer» Solution :Total NUMBER of ELECTRONS in `HeH^(-) = 2 + 1 + 1 = 4therefore ` Its electronic configuration will be `sigma _(1s)^(2)sigma _(1s)^(**2)` Bond order = `(1)/(2) (2-2) = 0 ` . Hence , this ION does not exist .