Chapter 9, Problem 9.8P

Interpretation Introduction

Interpretation:

The bond energies and bond order ${\text{C}}_{\text{2}}$ molecule and ${\text{C}}_{\text{2}}{}^{\text{2-}}$ ion have to be given.

Concept Introduction:

Bond energy:

The bond order is the number of electrons pairs shared between two atoms in the formation of the bond.  The amount of energy required to break a bond is called bond dissociation energy.  Thus greater the bond order grater is the bon energy.

Bond length:

The distances between the centers of bonded atoms are called bond lengths.  Bond order affects the bond length greater the bond order shorter is the bond length.

Bond order $\text{=}\frac{\left({\text{N}}_{\text{b}}\right)\text{-}\left({\text{N}}_{\text{a}}\right)}{\text{2}}$

Where, ${\text{N}}_{\text{b}}$ is number of electrons in bonding orbital.

${\text{N}}_{\text{a}}$ is number of electrons in antibonding orbital