In an ethene CH molecule, each carbon atom is sp hybridized. The hybrid orbitals involved in the bonding of carbon atoms in ethene are:1. One s orbital from each carbon atom2. Two p orbitals from each carbon atomDuring sp hybridization, one s orbital and two p orbitals from each carbon atom mix to form three sp hybrid orbitals. These sp hybrid orbitals form sigma bonds with two hydrogen atoms and the other carbon atom in the ethene molecule. The remaining unhybridized p orbital on each carbon atom overlaps with the unhybridized p orbital on the other carbon atom to form a pi bond. This results in a double bond between the two carbon atoms in the ethene molecule, with one bond and one bond.