โ–ธโ–ธ
  • ๐Ÿ‡ฌ๐Ÿ‡ง Tungsten
  • ๐Ÿ‡บ๐Ÿ‡ฆ ะ’ะพะปัŒั„ั€ะฐะผ
  • ๐Ÿ‡จ๐Ÿ‡ณ ้Žข
  • ๐Ÿ‡ณ๐Ÿ‡ฑ Wolfraam
  • ๐Ÿ‡ซ๐Ÿ‡ท Tungstène
  • ๐Ÿ‡ฉ๐Ÿ‡ช Wolfram
  • ๐Ÿ‡ฎ๐Ÿ‡ฑ ื˜ื•ื ื’ืกื˜ืŸ
  • ๐Ÿ‡ฎ๐Ÿ‡น Tungsteno (wolframio)
  • ๐Ÿ‡ฏ๐Ÿ‡ต ใ‚ฟใƒณใ‚ฐใ‚นใƒ†ใƒณ
  • ๐Ÿ‡ต๐Ÿ‡น Tungstênio
  • ๐Ÿ‡ช๐Ÿ‡ธ Wolframio
  • ๐Ÿ‡ธ๐Ÿ‡ช Volfram
  • ๐Ÿ‡ท๐Ÿ‡บ ะ’ะพะปัŒั„ั€ะฐะผ

Tungsten - 74W: historical information

  • Discoveror: Fausto and Juan Jose de Elhuyar
  • Place of discovery: Spain
  • Date of discovery: 1783
  • Origin of name : from the Swedish words "tung sten" meaning "heavy stone" (the origin of the symbol W is "wolfram ", named after the tungsten mineral wolframite).

Tungsten used to be known as wolfram (from wolframite, said to be named from wolf rahm or spumi lupi, because the ore interfered with the smelting of tin and was supposed to devour the tin). The de Elhuyar brothers found an acid in wolframite in 1783 that they succeeded in reducing to the elemental metal with charcoal.