Which of the following statements concerning molecular orbital theory is true?
1. Bonding orbitals are lower in energy than their corresponding anti-bonding orbitals.
2. If a molecule has an odd number of electrons, then it is paramagnetic.
3. the MO diagrams for O2, F2, Ne2 are NOT filled using the Aufbau principle.
a) 1 only b) 2 and 3 c) 1, 2, and 3 d) 1 and 3 e) 1 and 2 f) 2 only