Magnesium vs Aluminum
Pick up to 3 elements and see how they stack up.
| Property | Magnesium | Aluminum |
|---|---|---|
| Atomic number | 12 | 13 |
| Atomic mass | 24.305 | 26.982 |
| Electronegativity | 1.31 | 1.61 |
| Melting point | 923 K (649.8 °C) | 933.47 K (660.3 °C) |
| Boiling point | 1,363 K (1,089.8 °C) | 2,743 K (2,469.8 °C) |
| Density | 1.738 g/cm³ | 2.7 g/cm³ |
| Atomic radius | 173 pm | 184 pm |
| Ionization energy | 7.646 eV | 5.986 eV |
| Discovered | 1755 | 1825 |
| Category | Alkaline earth metal | Post-transition metal |
| State at room temp. | Solid | Solid |
| Block | s | p |
| Group | 2 | 13 |
| Period | 3 | 3 |
| Valence electrons | 2 | 3 |
| Common charges | +2 | +3 |
| Electron configuration | [Ne] 3s2 | [Ne] 3s2 3p1 |