Copper (Cu)

Atomic Number: 29

Relative Atomic Mass: 63.5463

Electronegativity: 1.90

Atomic Radius (Picometers): 135

Appearance: Red-Orange

Occurrence: Natural

Melting Point (Kelvin): 1357.77

Boiling Point (Kelvin): 2835

Stable Isotopes: 63, 65

Discoverer: The Ancients 

Properties: Ductile, High Electrical Conductivity

First Use: Jewelry (9th Millennium BC)

Modern Uses: Textile Fibers, Wood Preservative

Picture Courtesy of Materialscientist

©2011 Grant Dwyer