Os
Osmium (Atomic Number 76)
Category: transition | Period 6, Group 8 | Block: d
Densest naturally occurring chemical element on Earth.
Atomic & Physical Constants
- Standard Atomic Weight:
- 190.233 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 18, 32, 14, 2
- Electronegativity (Pauling):
- 2.2
- Melting Point:
- 3306 K
- Boiling Point:
- 5285 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
Fountain pen nib tips, electrical contacts, wear-resistant pivots
Discovery History
Discovered by Smithson Tennant (1803).
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