bariu
Barium is a chemical element with the symbol Ba and atomic number 56. It is a soft, silvery-white metal that is alkaline earth metal, belonging to Group 2 of the periodic table. Barium is highly reactive and cannot be found in its elemental form in nature. Instead, it is always found combined with other elements, most commonly in minerals like barite (barium sulfate, BaSO4) and witherite (barium carbonate, BaCO3).
Barium compounds have various applications. Barium sulfate is widely used in medical imaging as a contrast
Despite its usefulness, barium and its soluble compounds are toxic. Ingestion of soluble barium compounds can