Iron
Transition metal| Atomic number | 26 |
|---|---|
| Category | Transition metal |
| Atomic mass | 55.845 |
| Electron configuration | [Ar]3d⁶ 4s² |
| Oxidation states | +2, +3 |
| Electronegativity | 1.83 |
| Melting point | 1,538 °C |
| Boiling point | 2,861 °C |
| Density | 7.874 g/cm³ |
| Crystal structure | Body-centred cubic (α) |
| Group | 8 |
| Period | 4 |
| Block | d |
| Crustal abundance | 56,300 ppm |
