Manganese (Mn)
Manganese is essential for steel production and is also important for human bone health and metabolism.

Properties of Manganese
- Atomic number
- 25
- Category
- Transition Metal
- Atomic mass
- 54.938 u
- Electron configuration
- [Ar] 3d⁵ 4s²
- Melting point
- 1519 K (1245.85 °C)
- Boiling point
- 2334 K (2060.85 °C)
- Density
- 7.44 g/cm³
- Electronegativity (Pauling)
- 1.55
- Appearance
- Silvery-gray metal
- Discovered by
- Johan Gottlieb Gahn (1774)
Facts about Manganese
- Manganese is in every standard alkaline battery you use!
- About 90% of all manganese produced goes into making steel!
- Ancient cave painters used manganese dioxide as a black pigment!
- Your body needs tiny amounts of manganese to keep your bones strong!