Question

Lattice energy of ionic compounds depend upon:

• A. packing of ions only
• B. charge and size of ions
• C. charge on ion only
• D. size of ions only

Answer 1

The correct option is B charge and size of ions

Lattice energy is defined as the heat of formation for ions of opposite charge in the gas phase to combine into an ionic solid. It is directly proportional to the charge on the ions and inversely proportional to the size of the ions.