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 kJ·mol-1
Covalent radius: 132±4 pm
Van der Waals radius: 140 pm
- Cu
Electron Configuration
Isotopes
There are two naturally occurring isotopes of copper exist, 63Cu, and 65Cu.