Barium is a metal in group IIA of the periodic table with atomic number 56, an atomic weight of 137.34, and a density of 3.5 Mg/m 3. Its melting point is 714 C, and it boils at 1640 C. The electronic ...

One of the primary applications of barium sulfate is in the medical field as a contrast agent for X-rays and CT scans, where its radiopacity helps in imaging the gastrointestinal tract.