Barium (atomic number 56, symbol Ba) is a chemical element and an alkaline earth metal with a soft silvery color. Because of its reactivity with air, this metallic metal is not observed in its pure form in nature. Barium is found in naturally occurring minerals. Among them are witherite, which is a barium carbonate, barite, and barium sulfate.
Barium occurs in a combination with other elements, including oxygen, carbon, and sulfur. The metal has half the density of iron and is very light. It forms hydroxide by reacting vigorously with water and oxidizes in air. Barium also forms some poisonous...Read More