Co
Cobalt (Atomic Number 27)
Category: transition | Period 4, Group 9 | Block: d
Hard, ferromagnetic metal vital for high-density lithium battery cathodes.
Atomic & Physical Constants
- Standard Atomic Weight:
- 58.9331944 u
- Standard State Phase:
- Solid
- Electron Configuration:
- 2, 8, 15, 2
- Electronegativity (Pauling):
- 1.88
- Melting Point:
- 1768 K
- Boiling Point:
- 3200 K
Historical Discovery & Real-World Applications
Industrial & Scientific Uses
EV batteries, gas turbine superalloys, magnetic alloys
Discovery History
Discovered by Georg Brandt (1735).
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