Thaum twg nrhiav tau niobium?

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Thaum twg nrhiav tau niobium?
Thaum twg nrhiav tau niobium?

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Video: Thaum twg nrhiav tau niobium?
Video: Hmong U-N-I Jerry lor - Thaum Twg Mam Rov NRhiav Tau.wmv 2024, Kaum ib hlis
Anonim

Niobium, tseem hu ua columbium, yog cov khoom siv tshuaj nrog lub cim Nb thiab tus lej atomic 41. Niobium yog lub teeb grey, crystalline, thiab ductile hloov hlau. Ntshiab niobium muaj Mohs hardness ntsuam xyuas zoo ib yam li cov ntshiab titanium, thiab nws muaj zoo ductility rau hlau.

Thaum twg thiab qhov twg nrhiav tau niobium?

Niobium tau pom thawj zaug ( 1801) hauv cov qauv ore los ntawm Connecticut los ntawm Askiv chemist Charles Hatchett, uas hu ua lub caij columbium hauv kev hwm ntawm lub tebchaws ntawm nws keeb kwm, Columbia ua ib lub ntsiab lus rau Tebchaws Meskas.

Nws siv sijhawm ntev npaum li cas rau lub npe niobium?

Lub caij hu ua columbium (cim Cb) hauv Tebchaws Meskas tau txog 100 xyoo, thaum nws hu ua niobium hauv Tebchaws Europe. Xyoo 1949, International Union of Pure and Applied Chemistry tau txiav txim siab thiab lees txais niobium ua lub npe lub npe, raws li kev siv European.

Thaum twg lub ntsiab tau pom thawj zaug?

Qhov tsim nyog yuav tsum tau ua ua ntej rau kev tsim kho ntawm lub rooj zaum yog qhov kev tshawb pom ntawm tus kheej cov ntsiab lus. Txawm hais tias cov ntsiab lus xws li kub, nyiaj, tin, tooj liab, txhuas thiab mercury tau paub txij thaum ancient sij hawm, thawj qhov kev tshawb pom ntawm ib lub ntsiab tau tshwm sim nyob rau hauv 1649thaum Hennig Hom pom phosphorous.

Dab tsi yog qhov qub tshaj plaws hauv ntiaj teb?

Cov tshuaj qub tshaj plaws yog Phosphorus thiab cov khoom tshiab tshaj plaws yog Hassium.

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