The filling of molecular orbital takes place according to

1.	The filling of molecular orbital takes place according to
Answer» *1)Aufbau principle : Molecular orbitals are filled in order of the increasing ENERGIES.* *2)PAULI EXCLUSION principle: Molecular orbital can have maximum of 2 ELECTRONS and these must have opposite spin.*

Answer»

1)Aufbau principle : Molecular orbitals are filled in order of the increasing ENERGIES.

2)PAULI EXCLUSION principle: Molecular orbital can have maximum of 2 ELECTRONS and these must have opposite spin.

Discussion