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Copper

4
29
Cu
Copper
63.546
KEY
Chemical Element Symbol Key

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Copper
Columbia Encyclopedia
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Symbol: Cu
Atomic Number: 29
Atomic Weight: 63.546
Element Classification: Transition Metal
Discovered By: Known to the ancients.
Discovery Date: n/a (Unknown)
Name Origin: Symbol from Latin: cuprum (island of Cyprus famed for its copper mines).
Density (g/cc): 8.96
Melting Point (K): 1356.6
Boiling Point (K): 2840
Appearance: Malleable, ductile, reddish-brown metal
Atomic Radius (pm): 128
Atomic Volume (cc/mol): 7.1
Covalent Radius (pm): 117
Ionic Radius: 72 (+2e) 96 (+1e)
Specific Heat (@20°C J/g mol): 0.385
Fusion Heat (kJ/mol): 13.01
Evaporation Heat (kJ/mol): 304.6
Thermal Conductivity (@25°C W/m K):
Debye Temperature (K): 315.00
Pauling Negativity Number: 1.90
First Ionizing Energy (kJ/mol): 745.0
Oxidation States: 2, 1
Electronic Configuration: [Ar] 3d10 4s1
Lattice Structure: Face-Centered Cubic (FCC)
Lattice Constant (Å): 3.610
Lattice C/A Ratio: n/a