The chemical formula for barium is Ba.
Barium is a chemical element with the symbol Ba and atomic number 56. It belongs to the alkaline earth metals group in the periodic table. Barium occurs naturally in various minerals and is primarily extracted for use in a variety of applications, including in the production of barium compounds and in medical imaging techniques. As a metallic element, barium is typically encountered in its ionized form (Ba2+) in chemical compounds, especially in barium sulfate (BaSO4), which is commonly used in imaging procedures.