Tungsten |
| Symbol | W |
|---|---|
| Latin name | Wolframium |
| Atomic number | 74 |
| Period | 6 |
| Element category | Transition elements |
| Relative atomic mass | 183.85 |
| Group | VI.B |
| Electronegativity | 1.9 |
| Oxidation numbers | 2, 3, 4, 5, 6 |
| Electron configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 5s2 5p6 4f14 5d4 6s2 |
| Density [g/cm3] | 19.3 |
| State | Solid |
| Melting point [°C] | 3387 |
| Boiling point [°C] | 5660 |
| Atomic radius [pm] | 193 |
| Covalent radius [pm] | 146 |
| Thermal conductivity [W m-1K-1] | 174 |
| Heat capacity [J K-1g-1] | 0.13 |
| Discovery | 1758 |
| Hardness [Mohs scale] | 7.5 |
| Vickers hardness [MPa] | 3430 |
| Brinell hardness [MPa] | 2570 |
| Young's modulus [GPa] | 411 |
| Electrical conductivity [S m-1] | 1.8 · 107 |
| Electrical resistivity [10-6Ω.m] | 0.0536 |
| Shear modulus [GPa] | 161 |
| 1.st ionization energy [eV] | 7.98 |
| Stable isotopes | 5 |
| Unstable isotopes | 16 |