Which of the following AO's can combine to form a MO?
2s and 2p
2s and 3s
2p and 3p
1s and 2s
Only AO's of comparable energies can combine to form MO's. The and 2s AO's have comparable energies, so they can combine to form a MO. The
and
AO's have different energies, so they cannot combine to form a MO. The
and
AO's have different energies, so they cannot combine to form a MO.