The increasing order of the bond order of O2, O2-. O2+ and O22-?

Bond Order

• Every molecule has a hierarchy of bonds.
• Each molecule has a unique bond configuration.
• Half of the difference between the number of electrons in bond-free (nonbonding) and bond-filled (bonded) molecular orbitals is used to compute the bond order.

The formula to calculate the bond order:

BO = NB - NA/2

The quantity of electrons present in the bonding and antibonding molecular orbitals, is NA, NB

Step 1: Bond order calculation for a particular species:

BO for O2 = ½ (10 - 6) = 2

BO for O2- = ½ (10 - 7) = 1.5

BO for O2+ = ½ (10 - 5) = 2.5

BO for O22- = ½ (10 - 8) = 1

Step 2: Let us arrange according to increasing bond length

O22- < O2- < O2 < O2+

Summary:

The increasing order of the bond order of O2, O2-. O2+ and O22-?

O22- < O2- < O2 < O2+ is the increasing order of the bond order of O2, O2-. O2+ and O22- . The bond order is found by the total covalently bound electron pair numbers present in two atoms of a molecule.