Nonpolar Covalent Bond:

A Nonpolar Covalent Bond is formed when two atoms with very similar electronegativities undergo covalent bond formation. If the difference between the electronegativity values for the two bonded atoms is less than 0.3, then the electrons involved in the bond are shared almost equally. As a result, the electrons are not shifted to any of the atoms of molecule. Thus no poles are produced and the molecule will be consider as Non polar.