Which statement is INCORRECT about molecular orbital theory?
◦ The number of molecular orbitals produced is equal to the number of atomic orbitals combined.
◦ Each pair of sigma molecular orbitals is a bonding orbital and an antibonding orbital.
◦ The antibonding orbital is at a lower energy than the bonding orbital.
◦ The bond order (BO) is

.
◦ Hund's rule says that each orbital of identical energy has one electron before pairs are formed.