Metal ions

Metal ions are atoms of metals that have gained or lost electrons, giving them a positive or negative electric charge. This change allows them to interact with other molecules, play roles in biological processes, and form compounds. For example, the calcium ion helps build strong bones, while iron ions are essential for carrying oxygen in blood. Metal ions are often found in nature, materials, and living organisms, and their unique charges influence how they combine with other elements, contributing to various chemical and biological functions.