Question

The magnitude of the lattice energy of a solid increases if

• A. The charges on both the ions are small
• B. The size of the ions are small
• C. The size of the ions are large
• D. The ions are of equal size

Answer 1

The correct option is B The size of the ions are small

The magnitude of the lattice energy depends as larger the magnitude of the charge of the ions, greater will be the attractive force
smaller the size of the ions, lesser is the inter- nuclear distance and greater will be inter-ionic attraction hence more will be the value of lattice energy