* Solid State: In the solid state, ionic compounds are arranged in a rigid lattice structure. The ions are held in fixed positions by strong electrostatic forces. This prevents the free movement of ions, making them poor conductors of electricity.
* Molten State: When an ionic compound is heated to its melting point, the electrostatic forces holding the ions together weaken. The ions break free from their fixed positions and become mobile. This allows them to carry an electric current when a potential difference is applied.
* Water Solution: When an ionic compound dissolves in water, the water molecules surround the ions and effectively "pull" them apart. This process, called hydration, weakens the electrostatic forces between the ions. The hydrated ions are free to move around in the solution, allowing for electrical conductivity.
In summary:
* Mobility of ions is crucial for electrical conductivity.
* Molten state and water solution provide the necessary freedom of movement for the ions.
Let me know if you have any other questions.
