25 Mn
Transition metal
Manganese
Used in steel and batteries.
Properties of Manganese
- Atomic number (Z)
- 25
- Symbol
- Mn
- Atomic mass
- 54.938 g/mol
- Category
- Transition metal
- Group
- 7
- Period
- 4
- Electron configuration
- [Ar] 3d⁵ 4s²
- Electronegativity (Pauling)
- 1.55
- Atomic radius
- 161 pm
- First ionization energy
- 717 kJ/mol
- Melting point
- 1519 K (1245.8 °C)
- Boiling point
- 2334 K (2060.8 °C)
- Density
- 7.44 g/cm³
- Phase at 25 °C
- Solid
- Discovered
- Discovered in 1774