Chapter 7, Problem 7.83QP

Interpretation Introduction

Interpretation:

The bond orders and their magnetic properties (i.e., diamagnetic or paramagnetic) of the given species has to be compared and indicated.

Concept introduction:

Bond order: The number of chemical bonds between a pair of atoms i.e., diatomic molecules is said to be bond order.

$\text{Bond}\text{order = }\frac{\text{number}\text{of}\text{bonding}\text{electrons - number}\text{of}\text{antibondiong}\text{electrons}}{\text{2}}$

• We can justify the order of stability by using bond order and molecular orbital diagram.
• Higher the bond order the higher the stability.

Diamagnetic compound:

• Diamagnetic compounds should have zero unpaired electrons.
• An external magnetic field is applied the electrons moves in opposite direction of that magnet it means there will be repulsive force.
• It is very weak and undergoes unnoticed.

Paramagnetic compound:

• Paramagnetic compounds should unpaired electrons.
• An external magnetic field is applied the electrons moves in the same direction of that magnet it means there will be attractive force.
• It is very strong and noticed.