| Property | Value |
|---|---|
| Atomic number | 13 |
| Atomic weight | 26.98153868 amu |
| Element family | Other metals |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 27Al: 100% |
| Previous element | Magnesium |
| Next element | Silicon |
| Density | 2.698 g/cm3 (STP) |
| Melting | 660.25 °C |
| Boiling | 2467 °C |
| Covalent radius | 1.26 Å |
| Van der Waals radius | 1.84 Å |
| Ionic radius | 0.535 Å |
| Metallic radius | 1.43 Å |
| First ionization potential | 5.985 eV |
| Electron affinity | 0.433 eV |
| Electronegativity | 1.61 |
| Discovery year | 1824 |
Aluminum is an element number 13 from other metals family. Its symbol is Al. Aluminum atomic weight is 26.98153868 amu. Al stable and long lived isotopes are 27Al: 100%. Aluminum electronic configuration is 1s22s22p63s23p1. Sample compounds that contain Aluminum are Al2(SO4)3, Al2O3, AlCl3, Al(OH)3, Al(NO3)3, Al2S3.
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