Sodium

Sodium is a highly reactive and easily oxidized alkali metal under normal circumstances, and occurs naturally in table salt and certain minerals. Sodium is important for human health because it plays a role in maintaining fluid balance in the body, regulates blood pressure, and supports nerve and muscle function. Sodium is also used in a variety of industrial applications, such as the manufacture of soap, glass and other chemicals. Sodium is usually found as sodium ion (Na+) in solutions and chemical compounds