Atomic Properties
- Atomic Number
- 73
- Atomic Mass
- 180.9500 u
- Electron Configuration
- [Xe] 4f14 5d3 6s2
- Electronegativity
- 1.50
- Block
- d-block
- Group
- 5
- Period
- 6
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 3290.00 K
- Boiling Point
- 5731.00 K
- Density
- 16.6900 g/cm³
About Tantalum
Highly corrosion-resistant; used in electronics and surgical implants.
Isotopes of Tantalum
Tantalum has 2 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 180Ta | 180 | 179.9474648 | 0.0120% | Stable |
| 181Ta | 181 | 180.9479958 | 99.99% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)