Copper

Symbol | Cu
Latin name | Cuprum
Atomic number | 29
Period | 4
Element category | Transition elements
Relative atomic mass | 63.546
Group | I.B
Electronegativity | 1.9
Oxidation numbers | 1, 2, 3
Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s1
Density [g/cm3] | 8.96
State | Solid
Melting point [°C] | 1084.5
Boiling point [°C] | 2567
Atomic radius [pm] | 145
Covalent radius [pm] | 138
Thermal conductivity [W m-1K-1] | 401
Heat capacity [J K-1g-1] | 0.385
Discovery | Antiquity
Hardness [Mohs scale] | 3.0
Vickers hardness [MPa] | 369
Brinell hardness [MPa] | 874
Young's modulus [GPa] | 130
Electrical conductivity [S m-1] | 6.07 · 107
Electrical resistivity [10-6Ω.m] | 0.0169
Shear modulus [GPa] | 48
1.st ionization energy [eV] | 7.7264
2.nd ionization energy [eV] | 20.292
3.rd ionization energy [eV] | 36.83
Stable isotopes | 2
Unstable isotopes | 9