Tungsten

Uses, Properties, & Facts

Oct 4, 2023 - 19:25
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chemical properties of Tungsten (part of Periodic Table of the Elements imagemap)

tungsten (W), also called wolfram, 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.

Tungsten metal was first isolated (1783) by the Spanish chemists and mineralogists Juan José and Fausto Elhuyar by charcoal reduction of the oxide (WO3) derived from the mineral wolframite. Earlier (1781) the Swedish chemist Carl Wilhelm Scheele had discovered tungstic acid in a mineral now known as scheelite, and his countryman Torbern Bergman concluded that a new metal could be prepared from the acid. The names tungsten and wolfram have been used for the metal since its discovery, though everywhere Jön Jacob Berzelius’s symbol W prevails. In British and American usage, tungsten is preferred; in Germany and a number of other European countries, wolfram is accepted.

Element Properties
atomic number74
atomic weight183.85
melting point3,410 °C (6,152 °F)
boiling point5,660 °C (10,220 °F)
density19.3 grams/cm3 at 20 °C (68 °F)
oxidation states+2, +3, +4, +5, +6
electron configuration[Xe]4f145d46s2

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