Monday, 29 August 2011

Caesium (Cs)

Atomic Number: 55

Relative Atomic Mass: 132.90545192


Electronegativity: 0.79

Atomic Radius (Picometers): 260

Appearance: Silver-Gold

Occurrence: Natural


Melting Point (Kelvin): 301.59

Boiling Point (Kelvin): 944

Stable Isotopes: 133

Discoverer: Robert Bunsen in 1860

Properties: Soft, Ductile

First Use: Chemical and Electric Fields (Unknown)

Modern Uses: Atomic Clock, Centrifugation Fluids


File:Cesium.jpg


Picture Courtesy of Dnn87

©2011 Grant Dwyer

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