An Element classified as an Alkaline Earth Metals are found in the Earth’s crust, but not in the elemental form as they are so reactive. Instead, they are widely distributed in rock structures.

Brief Facts about the Discovery and History of the Element Barium
Barium was discovered by in 1774 by Carl Scheele and extracted by Sir Humphrey Davy in 1808

Occurrence of the element Barium in the Atmosphere
Extracted from the mineral barite and whiterite
Oxidizes quickly in air

Common Uses of Barium
Sparkplugs
Vacuum tubes
Fireworks
Fluorescent lamps
Paint
Rat poison
Medical Uses - Given orally as a barium meal or as an enema (enima) , to increase the contrast of medical X-rays of the digestive system
Barium sulfate, hydroxide octahydrate, nitrate, carbonate

The Properties of the Element Barium
Name of Element : Barium
Symbol of Element : Ba
Atomic Number of Barium : 56
Atomic Mass: 137.327 amu
Melting Point: 725.0 °C - 998.15 °K
Boiling Point: 1140.0 °C - 1413.15 °K
Number of Protons/Electrons in Barium : 56
Number of Neutrons in Barium : 81
Crystal Structure: Cubic
Density @ 293 K: 3.51 g/cm3
Color of Barium : Silver