In sp3 hybridization how many atomic orbitals are involved?

Answer:

In sp³ hybridization one s and three p orbitals are involved in hybridization.

Hybridization is the process of combining two atomic orbitals with the same energy levels to produce a degenerated new type of orbitals. The atomic orbitals of similar energy are mixed together during the hybridization process, such as mixing two ‘s’ orbitals or two ‘p’ orbitals, or mixing a ‘s’ orbital with a ‘p’ orbital or a ‘s’ orbital with a ‘d’ orbital.

sp³ Hybridization

A tetrahedral hybridization, or sp³ hybridization occurs when one ‘s’ orbital and three ‘p’ orbitals belonging to the same shell of an atom combine to form four new equivalent orbitals. Sp³ hybrid orbitals are the new orbitals that have formed.