Can ions conduct electricity?

Ions can conduct electricity when they are free to move, which occurs in a liquid state or when dissolved in water. In these conditions, the ions are not fixed in position, allowing them to migrate towards the electrodes when a voltage is applied, thus facilitating the flow of electric current.

In solid form, ionic compounds typically do not conduct electricity because the ions are held in fixed positions within a crystalline lattice and cannot move freely. This restriction prevents the flow of electrical charge. Options that suggest that ions are neutral particles or non-conductive do not accurately represent the behavior of charged particles. Therefore, the correct answer emphasizes that the mobility of ions is crucial for electrical conductivity, which is why they can conduct electricity if they are free flowing.