sp hybridization: This type of hybridization involves the mixing of one orbital of s sub-level and one orbital of p-sub-level of the valence shell of the atom to form sp-hybridized orbitals, of equivalent shapes and energies, these sp-hybridized orbitals are oriented in shape at an angle of 180°.
sp2 hybridization: This type of hybridization involves the mixing of one orbital of s-sub-level and two orbitals of p-sub-level of the valence shell to form three sp2 hybrid orbitals of equivalent shapes and energies. These sp2 hybrid orbitals lie in a plane and are directed towards the corners of equilibrium triangle with an angle of 120°.
sp2 hybridization: This type of hybridization involves the mixing of one orbital of s-subshell and three orbitals of p-subshell of the valence shell to form four sp3 hybrid orbitals of equivalent energies and shapes. The four sp3 hybrid orbitals are directed towards the four corners of a tetrahedron.
