Molecular Orbital theory properly redictsparamagnetism of oxygen gas, O2. This is because
a) There are two unpaired electrons in the MO electron configuration of O2
b) There are more electrons in the bonding orbitals than in the antibonding orbitals.
c) The O-O bond distance is relatively short
d) The bond order in O2 can be shown to be equal to 2
e) The energy of the π2p MOs is higher than that of theσ2p MO