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Tungsten, at atomic number Z = 74, is the heaviest element known to be biologically functional. It is used by some bacteria and archaea , [ 120 ] but not in eukaryotes .
Element Tungsten (W), Group 6, Atomic Number 74, d-block, Mass 183.84. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
13 wrz 2024 · tungsten (W), chemical element, an exceptionally strong refractory metal of Group 6 (VIb) of the periodic table, used in steels to increase hardness and strength and in lamp filaments.
28 lut 2013 · Tungsten is used for electric contacts, arc-welding electrodes and for heating elements in high temperature furnaces. High-speed steels contain around 7% tungsten and these are used for saw blades, punches, dies and other high impact devices.
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.
Tungsten - Properties, history, name origin, facts, applications, isotopes, electronic configuation, crystal structure, hazards and more; Interactive periodic table of the chemical elements.
Tungsten (IV) sulfide is a high temperature lubricant and component of catalyst for hydrodesulfurization (remove sulfur from natural gas). Oxides of tungsten are used in manufacturing of ceramic glazes. Tungsten salts are widely used in chemical and tanning industries. Tungsten is also used in printing nozzle for 3D printing.
