- A In The Lcao Approximation Which Of The Following Three Pairs Of Atomic Orbitals Centred On Different Atoms In A Di 1 (132.43 KiB) Viewed 218 times
(a) In the LCAO approximation, which of the following three pairs of atomic orbitals, centred on different atoms in a diatomic molecule, produce o molecular orbitals? (1so, 1so), (2po, 2po), (2p1, 2p₁). (b) The ground state of molecular oxygen is log, 101, 20², 201, 30², 171, 1–² and the ground state of molecular nitrogen is 10², 10², 20², 20, 171, 30². Given that log, 20g, 30g and 1πu are bonding orbitals while lou, 20 and 17g are antibonding orbitals, what are the formal bond orders of the N₂ and O₂ molecules? Hence or otherwise explain which molecule has the lower dissociation energy.