Barium swallow for X-ray imaging.
Barium is a alkaline-earth element located in period 6, group 2 of the periodic table. It has the chemical symbol Ba and atomic number 56. The electron configuration of Barium is [Xe] 6s2, giving it 2 valence electron(s).
Explore Barium in interactive 3D with the Soren Periodic Table. View Bohr model, quantum orbital model, nucleus inspector, and phase lab with temperature and pressure controls. Includes fun facts, real-world uses, and NCTB curriculum integration for Bangladeshi students.