Ruthenium (Ru)

Atomic Number: 44

Relative Atomic Mass: 101.07

Electronegativity: 2.20

Atomic Radius (Picometers): 130

Appearance: Silver-White

Occurrence: Natural

Melting Point (Kelvin): 2607

Boiling Point (Kelvin): 4423

Stable Isotopes: 96, 98, 99, 100, 101, 102, 104

Discoverers: Jedrzej Sniadecki in 1807

Properties: Polyvalent, Hard

First Use: Unknown (Pre-Columbian Era)

Modern Uses: Data Storage, Solar Energy Conversion

Picture Courtesy of Periodictableru

©2011 Grant Dwyer