Atomic Properties
- Atomic Number
- 27
- Atomic Mass
- 58.9330 u
- Electron Configuration
- [Ar] 3d7 4s2
- Electronegativity
- 1.88
- Block
- d-block
- Group
- 9
- Period
- 4
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 1768.00 K
- Boiling Point
- 3200.00 K
- Density
- 8.9000 g/cm³
About Cobalt
Blue pigment since antiquity; used in batteries and superalloys.
Isotopes of Cobalt
Cobalt has 1 naturally occurring isotope.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 59Co | 59 | 58.93319429 | 100.00% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)