Zirconium (Zr)

Atomic Number: 40

Relative Atomic Mass: 91.224

Electronegativity: 1.33

Atomic Radius (Picometers): 155

Appearance: Silver-White

Occurrence: Natural

Melting Point (Kelvin): 2128

Boiling Point (Kelvin): 4682

Stable Isotopes: 90, 91, 92

Discoverer: Martin Klaproth in 1789

Properties: Lustrous, Soft, Malleable, Ductile

First Use: Unknown

Modern Uses: Nuclear, Aeronautics

Picture Courtesy of Alchemist-hp

©2011 Grant Dwyer