Explain `SP^2` hybridisation in ethene molecule.

Explanation

The molecular of ethene is `C_(2)H_(4)`
Electronic configuration of C is ground state `-1s^(2)2s^(2)2p^(3)`
Electronic configurationof C is exicted state `-1s^(2)2s^(2)p^(3)`
Valence orbital representation

`sp^(2)` hybridization involves 2 carbon atoms combines with 4 atoms of hydrogen.
In ethane molecule, there is 5 sigma and 1 pi b ond. The angle of `sp^(2)` hybridized ethane is `120^(@)`.