Ru
Ruthenium (Atomic Number 44)
Category: transition | Period 5, Group 8 | Block: d
Rare platinum group metal used for wear-resistant electrical contacts.
Atomic & Physical Constants
- Standard Atomic Weight:
- 101.072 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 15, 1
- Electronegativity (Pauling):
- 2.2
- Melting Point:
- 2607 K
- Boiling Point:
- 4423 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Chip contacts, solar cell dye sensitizers, chemical catalysts
Discovery History
Discovered by Karl Ernst Claus (1844).
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