Dab tsi yog qhov feem ntau isotope ntawm tungsten?
Dab tsi yog qhov feem ntau isotope ntawm tungsten?

Video: Dab tsi yog qhov feem ntau isotope ntawm tungsten?

Video: Dab tsi yog qhov feem ntau isotope ntawm tungsten?
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Tungsten

Tus naj npawb Ntuj Kev nplua nuj Ib nrab neej
182 26.50% PHEM
183 14.31% > 1.3×10 +19 xyoo
184 30.64% PHEM
186 28.43% > 2.3×10 +19 xyoo

Cov lus nug tseem yog, pes tsawg isotopes puas muaj tungsten?

tsib

Qhov thib ob, dab tsi cov tebchaw yog tungsten pom nyob rau hauv? Tungsten tshwm sim feem ntau nyob rau hauv cov minerals scheelite, wolframite, huebnerite, thiab ferberite.

Ntxiv rau qhov no, dab tsi yog qhov kev siv ntau tshaj ntawm tungsten?

Tam sim no siv yog li electrodes, cua sov ntsiab thiab teb emitters, thiab raws li filaments nyob rau hauv lub teeb qhov muag teev thiab cathode ray tubes. Tungsten yog nquag siv nyob rau hauv hnyav hlau alloys xws li kev kub ceev steel, los ntawm cov cuab yeej txiav yog tsim. Nws kuj yog siv nyob rau hauv lub thiaj li hu ua 'superalloys' los tsim hnav-resistant coatings.

tungsten nyob qhov twg hauv ntiaj teb?

Tungsten yog pom hauv qee cov zaub mov suav nrog wolframite ((Fe, Mn) WO4) thiab scheelite (CaWO4). Feem ntau ntawm lub ntiaj teb no tungsten , txog 75%, los ntawm Tuam Tshoj. Lwm yam loj deposits ntawm tungsten tuaj yeem yog pom Hauv California, Colorado, Kaus Lim Qab Teb, Bolivia, Russia thiab Portugal.

Pom zoo: