Molybdenum
Transition Metal
Molybdenum (Mo) is a chemical element with atomic number 42, classified as a transition metal. At room temperature it is a solid. It was discovered in 1778 by Carl Wilhelm Scheele.
Properties
- Atomic number
- 42
- Atomic mass
- 95.95 u
- Category
- Transition Metal
- Group
- 6
- Period
- 5
- Block
- d-block
- Electron configuration
- [Kr] 4d⁵ 5s¹
- Phase at STP
- Solid
- Density
- 10.22 g/cm³
- Melting point
- 2896 K (2622.8 °C)
- Boiling point
- 4912 K (4638.9 °C)
- Electronegativity
- 2.16
- Atomic radius
- 190 pm
- Ionization energy
- 7.092 eV
- Discovery
- 1778 · Carl Wilhelm Scheele
Common uses
Steel alloys, catalysts, lubricants, pigments
Did you know?
Essential trace element for life and has the highest melting point of any element in group 6.