Which statement regarding stable heteronuclear diatomic molecules is false? (a) All have bond orders greater than zero. (b) The antibonding molecular orbitals have more of the character of the more electropositive element than of the more electronegative element. (c) Their molecular orbital diagrams are more symmetrical than those of homonuclear diatomic molecules. (d) The bonding molecular orbitals have more of the character of the more electronegative element than of the less electronegative element. (e) The greater is the difference in energy between two overlapping atomic orbitals, the more polar the resulting bond is, due to electrons occupying the resulting bonding molecular orbital