Barium (Ba)

Atomic Number: 56

Relative Atomic Mass: 137.33

Electronegativity: 0.89

Atomic Radius (Picometers): 215

Appearance: Silver-Grey

Occurrence: Natural

Melting Point (Kelvin): 1000

Boiling Point (Kelvin): 2170

Stable Isotopes: 130, 132, 134, 135, 136, 137, 138

Discoverer: Sir Humphry Davy in 1808

Properties: Soft

First Use: Unknown

Modern Uses: Electroceramics, Bleaching Agent

Picture Courtesy of Matthias Zepper

©2011 Grant Dwyer