44Ru
Element 44
Ruthenium
Transition metals
Ruthenium is a chemical element with symbol Ru and atomic number 44.
Key data
- Atomic number
- 44
- Atomic mass
- 101.072 u
- Group / Period
- 8 / 5
- Block
- d-block
- Phase at STP
- Solid
- Density
- 12.45 g/cm³
- Melting point
- 2333.8 °C
- Boiling point
- 4149.9 °C
- Electron configuration
- [Kr] 4d7 5s1
Common uses
- •Hard-disk coatings
- •Solar cells
- •Catalysts
Discovery
Year: 1844
Discovered by: Karl Ernst Claus
Frequently asked questions
What is the atomic number of Ruthenium?
Ruthenium has atomic number 44. Its symbol is Ru and its atomic mass is 101.072 u.
What category of element is Ruthenium?
Ruthenium is classified as transition metals. It sits in group 8, period 5 of the periodic table.
What is Ruthenium used for?
Common uses of Ruthenium include: Hard-disk coatings, Solar cells, Catalysts.
When was Ruthenium discovered?
Ruthenium was discovered in 1844 by Karl Ernst Claus.
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