Ionic solids conduct electricity in molten state but not in solid state. Explain.

(N/A) In ionic compounds,electricity is conducted by the movement of ions.
In the solid state,ions are held together by strong electrostatic forces of attraction and are not free to move throughout the crystal lattice.
Therefore,ionic solids act as insulators in the solid state.
However,in the molten state or when dissolved in a polar solvent,the crystal lattice breaks down,and the ions become free to move,allowing them to conduct electricity.