Question

Between NaCl and CsCl, which has greater strength of ionic bond? Justify.

Answer 1

Strength of ionic bond:

1.Ionic bond is the electrostatic forces of attraction existing between cation and anion in an ionic compound.

2. Stength of ionic bond depends on charge and size of ion. For a Cation, higher charge and smaller size results in higher lattice energy which inturn results in stronger bond.

3.Since charges are same on $C{s}^{+}$and $N{a}^{+}$, lattice energy depends on size , so, $N{a}^{+}$ size is smaller compared to $C{s}^{+}$, the ionic bond in NaCl is stronger than CsCl.