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 |