Atomic Properties
- Atomic Number
- 72
- Atomic Mass
- 178.4900 u
- Electron Configuration
- [Xe] 4f14 5d2 6s2
- Electronegativity
- 1.30
- Block
- d-block
- Group
- 4
- Period
- 6
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 2506.00 K
- Boiling Point
- 4876.00 K
- Density
- 13.3100 g/cm³
About Hafnium
Extremely corrosion-resistant; used in nuclear reactors and processors.
Isotopes of Hafnium
Hafnium has 6 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 174Hf | 174 | 173.9400461 | 0.1600% | Stable |
| 176Hf | 176 | 175.9414076 | 5.260% | Stable |
| 177Hf | 177 | 176.9432277 | 18.60% | Stable |
| 178Hf | 178 | 177.9437058 | 27.28% | Stable |
| 179Hf | 179 | 178.9458232 | 13.62% | Stable |
| 180Hf | 180 | 179.946557 | 35.08% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)