Ions in solutions

In solutions, ions are atoms or molecules that have gained or lost electrons, giving them an electric charge. When salt dissolves in water, for example, it separates into positively charged ions (cations) like sodium and negatively charged ions (anions) like chloride. These ions are dispersed throughout the solution, allowing it to conduct electricity. The movement of ions enables various chemical reactions and processes, such as electrical conductivity and nutrient transport in biological systems. Ions are fundamental to many chemical and biological functions because their charge and mobility influence how substances behave in a solution.