Tantalum (Ta)

Atomic Number: 73

Relative Atomic Mass: 180.94788

Electronegativity: 1.50

Atomic Radius (Picometers): 145

Appearance: Blue-Grey

Occurrence: Natural

Melting Point (Kelvin): 3290

Boiling Point (Kelvin): 5731

Stable Isotopes: 181

Discoverer: Anders Ekeberg in 1802

Properties: Ductile, Hard

First Use: Unknown

Modern Uses: Electronics, Alloys

Picture Courtesy of Alchemist-hp

©2011 Grant Dwyer