(a) Describe briefly the molecular orbital (MO) theory approach to chemical bonding, defining the terms "bonding", “anti-bonding" and "non-bonding"molecular orbitals. Give examples of the use of MO theory in explaining

the properties of covalent molecules, The molecular orbital diagram of NO is given below. What do the labels o and a pi on the atomic and molecular orbitals means (c) Explain how the molecular orbital diagram above is derived. (d) State how many electrons are in each molecular orbital Use the molecular orbital diagram of NO to explain why the N atom has a partial negative charge and the O atom has a partial positive charge.