Question

Tungsten has an atomic radius of 0.136 nm. the density of tungsten is 19.4g/cm3. what is the crystal structure of tungsten?

Answer 1

(1) Pure tungsten is a steel-gray to tin-white metal

(ii) Tungsten has the highest melting point and lowest vapour pressure of all metals, and at temperatures over 1650°C has the highest tensile strength

(iii) 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.