Germanium (Ge)

Atomic Number: 32

Relative Atomic Mass: 72.631

Electronegativity: 2.01

Atomic Radius (Picometers): 125

Appearance: Greyish White

Occurrence: Natural

Melting Point (Kelvin): 1211.40

Boiling Point (Kelvin): 3106

Stable Isotopes: 70, 72, 73, 74

Discoverer: Clemens Winkler in 1886

Properties: Brittle, Hard

First Use: Unknown

Modern Uses: Optics, Electronics

Picture Courtesy of Jurii

©2011 Grant Dwyer