Trace Elements Laboratory
A Joint Venture of London Health Sciences Centre and St. Joseph's Health Care London
Tungsten (W)
This element is not currently measured in this laboratory.
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Atomic Number:

74

Atomic Symbol:

W

Atomic Weight: 183.5
Electron Configuration: [Xe]6s24f145d4

Pure tungsten is a steel-gray to tin-white metal. Tungsten has the highest melting point and lowest vapour pressure of all metals, and at temperatures over 1650°C has the highest tensile strength. The metal oxidises in air and must be protected at elevated temperatures. It has excellent corrosion resistance and is attacked only slightly by most mineral acids.


 

 


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April 8, 2008