Natrium is the Latin name for the chemical element sodium, which has the symbol Na on the periodic table. It is a soft, silvery-white metal that is highly reactive, especially with water. Sodium is an essential element for life, playing a crucial role in various biological processes, including nerve function and fluid balance in the body. In nature, sodium is commonly found in the form of compounds, such as sodium chloride (table salt). It is widely used in various industries, including food preservation, chemical manufacturing, and even in the production of glass. Sodium's reactivity and abundance make it an important element in both science and everyday life.