Aluminum

Symbol | Al
Latin name | Aluminium
Atomic number | 13
Period | 3
Element category | Metals
Relative atomic mass | 26.981539
Group | III.A
Electronegativity | 1.5
Oxidation numbers | 3
Electron configuration | 1s2 2s2 2p6 3s2 3p1
Density [g/cm3] | 2.6989
State | Solid
Melting point [°C] | 660.37
Boiling point [°C] | 2467
Atomic radius [pm] | 118
Covalent radius [pm] | 118
Thermal conductivity [W m-1K-1] | 237
Heat capacity [J K-1g-1] | 0.9
Discovery | 1825
Hardness [Mohs scale] | 2.9
Vickers hardness [MPa] | 167
Brinell hardness [MPa] | 245
Young's modulus [GPa] | 70
Electrical conductivity [S m-1] | 37.7 · 106
Electrical resistivity [10-6Ω.m] | 0.0267
Shear modulus [GPa] | 26
1.st ionization energy [eV] | 5.9858
2.nd ionization energy [eV] | 18.828
3.rd ionization energy [eV] | 28.447
Stable isotopes | 1
Unstable isotopes | 7