Atomic Properties
- Atomic Number
- 74
- Atomic Mass
- 183.8400 u
- Electron Configuration
- [Xe] 4f14 5d4 6s2
- Electronegativity
- 2.36
- Block
- d-block
- Group
- 6
- Period
- 6
Physical Properties
- Phase (STP)
- solid
- Melting Point
- 3695.00 K
- Boiling Point
- 6203.00 K
- Density
- 19.2500 g/cm³
About Tungsten
Highest melting point of all elements; used in light bulb filaments.
Why "W" for Tungsten?
W←Wolfram(German)
The symbol W comes from "Wolfram," the German name still used in many languages. It means "wolf foam" referring to how tin ore was "devoured like a wolf" when tungsten was present. The English name "Tungsten" is Swedish for "heavy stone."
Isotopes of Tungsten
Tungsten has 5 naturally occurring isotopes.
| Isotope | Mass Number | Atomic Mass (u) | Abundance | Type |
|---|---|---|---|---|
| 180W | 180 | 179.9467108 | 0.1200% | Stable |
| 182W | 182 | 181.9482039 | 26.50% | Stable |
| 183W | 183 | 182.9502227 | 14.31% | Stable |
| 184W | 184 | 183.9509309 | 30.64% | Stable |
| 186W | 186 | 185.9543628 | 28.43% | Stable |
Data source: NIH PubChem (aggregated from IUPAC, NIST)