Lutetium (Lu)

Atomic Number: 71

Relative Atomic Mass: 174.96684

Electronegativity: 1.27

Atomic Radius (Picometers): 175

Appearance: Silver-White

Occurrence: Natural

Melting Point (Kelvin): 1925

Boiling Point (Kelvin): 3675

Stable Isotopes: 175

Discoverers: Carl Auer von Welsbach and Georges Urbain in 1906

Properties: Hard

First Use: Unknown

Modern Uses: Nuclear, Alloys

Picture Courtesy of Alchemist-hp

©2011 Grant Dwyer