The bond order indicates the number of chemical bonds present within the pair of atoms. For example, the bond order of diatomic nitrogen N ≡ N is 3 and the order of bonds between carbon atoms in H-H ≡ C-H is also 3. The bond order defines the stability of the bond. The molecular orbital provides an easy understanding of the concept of the chemical bond structure. It quantifies the degree of covalent bonds between atoms.