Tungsten
Lets Tungstell A Story: Tyler Bond
Basic Information
- Atomic Number: 74
- Symbol: W
- Atomic Weight: 183.84
- Group: none
- Period: 6
- Color: Grayish White
- Classification: Metallic
Other Information
- History:Discovered by Fausto and Juan Jose de Elhuyar in 1783 at Spain, from the Swedish words "Tung sten" meaning "heavy stone"
- Uses:Tungsten is found in wolframite (iron-manganese tungstate, FeWO4/MnWO4) and scheelitez (calcium tungstate, CaWO4) ores. China produces 75% of the world's tungsten.
- Description:Tungsten has the highest melting point and lowest vapor pressure of all metals
- Biology (in humans):The metal oxidizes in air and must be protected at elevated temperatures
- Geology ( in the universe):It has excellent corrosion resistance and is attacked only slightly by most mineral acids
- Properties:Density of solid: 19250 kg m-3, Molar volume: |196| cm3, Thermal conductivity: |206| W m‑1 K‑1
- Interesting Facts:The highest melting point and lowest vapor pressure of all metals, and at temperatures over 1650°C has the highest tensile strength.