Periodic Table of Elements

29

Copper

63.546

Copper has been known since prehistoric time. Ithas been being extracted from various ores for at least 7,000 years.

Name: Copper
Symbol: Cu
Atomic number: 29
Atomic weight: 63.546
State: solid
Group, period, block: 11, 4, d
Color: red-orange metallic luster
Classification: transition metal
Electron configuration: 4d10 4s1
2,8,18,1

Physical properties

Density: 8.96 g/cm-3
Melting point: 1357.77 K, 1084.62 C, 1984.32 F
Boiling point: 2835 K, 2562 C, 4643 F

Atomic properties

Oxidation states: +1, +2, +3, +4
Electronegativity: 1.90 (Pauling scale)
Ionization energies: 1st: 745.5 kJmol-1
Covalent radius: 1324 pm
Van der Waals radius: 140 pm
  • Cu
  • Electron Configuration

Isotopes

There are two naturally occurring isotopes of copper exist, 63Cu, and 65Cu.