Barium is used in fireworks (green).
Standard State: solid at 298 K
Color: silvery white
Sir Humphrey Davy discovered Barium in 1808. Barium is found only in combinations with other elements. It resembles calcium
chemically and is soft and belongs to the alkaline earth group. Barite is used
extensively as a weighing agent in oil-well drilling fluids. The carbonate of Barium
has been used as a rat poison.