Sodium is a positively charged ion (cation) that is an essential electrolyte in the body. It plays a crucial role in maintaining fluid balance, nerve function, and muscle contractions. In solute form, sodium is typically found as sodium chloride (table salt) or other sodium salts in water solutions. Sodium ions can easily dissociate in water, forming a solute that carries an electrical charge and contributes to the conductivity of the solution.
