An element A has two electrons in the outermost shell of its atom and combines with an element B having seven electrons in the outermost shell, forming the compound AB₂. The compound when dissolved in water conducts electric current. Giving reasons, state the nature of chemical bond in the compound.

AB₂ forms an ionic bond.

Explanation: An aqueous solution of an ionic compound conducts electricity because there are plenty of free ions in the solution that is able to conduct electric current.