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 |