29
Cu
63.546
Copper
Element 29 · 63.546 u · d-block
transition metal
One of the first metals used by humans. Excellent electrical conductor, used in wiring, plumbing, and coinage.
Phase (STP)
Solid
Melting Point
1084.62 °C
Boiling Point
2562 °C
Density
8.96 g/cm³
Electronegativity
1.9
Atomic Radius
135 pm
Ionization Energy
745 kJ/mol
Electron Affinity
119 kJ/mol
Discovered
Ancient · Known since antiquity
Electron Configuration
[Ar] 3d10 4s1
Electron Orbitals
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