What are the necessary conditions for hybridization?
Conditions for hybridization:
(i) The orbitals taking part in hybridization must have only a small difference of energies.
(ii) The orbitals undergoing hybridization generally belong to the valence of the atom.
(iii) It can take place between completely filled, half-filled or empty orbitals.
(iv) All the orbitals of the valence shell may or may not take part in hybridization.