Ruthenium (Ru)
Ruthenium is a rare transition metal used in electronics and as a catalyst.
Properties of Ruthenium
- Atomic number
- 44
- Category
- Transition Metal
- Atomic mass
- 101.07 u
- Electron configuration
- [Kr] 4d⁷ 5s¹
- Melting point
- 2607 K (2333.85 °C)
- Boiling point
- 4423 K (4149.85 °C)
- Density
- 12.37 g/cm³
- Electronegativity (Pauling)
- 2.2
- Appearance
- Silvery-white hard metal
- Discovered by
- Karl Ernst Claus (1844)
Facts about Ruthenium
- Ruthenium is named after Russia (Ruthenia is the Latin name)!
- Ruthenium is one of the rarest metals on Earth!
- Ruthenium is used to make electrical contacts that last a long time!
- Ruthenium is added to platinum and palladium to make them harder!