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Tungsten (also called wolfram) [14] [15] is a chemical element; it has symbol W and atomic number 74. It is a rare metal found naturally on Earth almost exclusively as compounds with other elements.
W is the symbol for the chemical element tungsten, after its German (and alternative English) name, Wolfram. [28] W is the SI symbol for the watt, the standard unit of power. w is also often used as a variable in mathematics, especially to represent a complex number or a vector.
The chemical symbol for tungsten, W, is based on the German name Wolfram, which is found in wolframite and comes from the German for "wolf's foam", how the mineral was known to Saxon miners. The name tungsten means "heavy stone", a description of scheelite, another mineral in which tungsten is found. [11]
Tungsten carbide (chemical formula: WC) is a chemical compound (specifically, a carbide) containing equal parts of tungsten and carbon atoms. In its most basic form, tungsten carbide is a fine gray powder, but it can be pressed and formed into shapes through sintering [7] for use in industrial machinery, engineering facilities, [8] molding blocks, [9] cutting tools, chisels, abrasives, armor ...
Another catalytic use of tungsten is as a De-NO X catalyst which is used in the treatment of nitrogen oxide emissions to convert harmful nitrogen oxides into inert N 2 gas. [14] Another modern day use of tungsten is as a lubricant. Tungsten disulfide (WS 2) is a lubricant with a dynamic coefficient of friction of ~0.03. Tungsten disulfide can ...
Tungsten (W) 74 tung sten: Swedish and Danish "heavy stone" descriptive From the Swedish and Danish "tung sten", which means "heavy stone". · Symbol W is from the German name Wolfram. · Former name Wolfrahm (German, literally "wolf cream") was the historical name. The names wolfram or volfram are still used in Swedish and several other ...
This Latin alphabet was then forced to come up with a symbol to represent the sound of the “w.” According to GrammarPhobia, this 7th-century problem was remedied by the symbol “uu,” which ...
Tungsten, also known as wolfram, is a chemical element with the chemical symbol W and atomic number 74. The word tungsten comes from the Swedish language tung sten directly translatable to heavy stone, [17] though the name is volfram in Swedish to distinguish it from Scheelite, in Swedish alternatively named tungsten. A hard, rare metal under ...