2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Terbium yog thawj zaug cais tawm hauv 1843 los ntawm Swedish chemist Carl Mosander ntawm Stockholm. Nws twb tau tshawb xyuas cerium oxide thiab cais cov khoom tshiab los ntawm nws, lanthanum, thiab tam sim no nws tau tsom ntsoov rau yttrium, nrhiav pom nyob rau hauv 1794, vim nws xav tias qhov no kuj yuav muaj lwm lub ntsiab lus.
Terbium pom nyob qhov twg?
Terbium tau raug cais tawm thawj zaug tom qab ob peb lwm cov lanthanides hauv Stockholm, Sweden los ntawm Carl Gustav Mosander hauv 1843, uas xav tias cov ntxhia hauv Yttria tau tshawb pom yav dhau los hauv 1794 los ntawm Johan Gadolin yuav chaw nres nkoj lwm yam, ib yam li ceria tau ua yav tas los.
keeb kwm ntawm terbium yog dab tsi?
Lo lus keeb kwm: Terbium yog npe rau lub zos ntawm Ytterby, Sweden (raws li yog yttrium, erbium thiab ytterbium). Discovery: Swedish chemist Carl Gustaf Mosander tau cais cov ntxhia gadolinite rau hauv peb cov khoom, uas nws hu ua yttria, erbia thiab terbia, xyoo 1843.
Dysprosium nyob qhov twg hauv ntiaj teb?
Dysprosium yog qhov tseem ceeb tau los ntawm bastnasite thiab monazite, qhov twg nws tshwm sim raws li qhov tsis huv. Lwm cov dysprosium-cov kabmob muaj xws li euxenite, fergusonite, gadolinite thiab polycrase. Nws yog mined hauv Teb Chaws Asmeskas, Tuam Tshoj Russia, Australia, thiab India.
Lub teb chaws twg muaj dysprosium tshaj plaws?
Suav teb. Unsurprisingly, Tuam Tshoj muaj lub siab tshaj plaws reserves ntawm tsawg ntiaj teb minerals ntawm 44 lab MT. Lub teb chaws kujlub ntiaj teb no tus thawj coj tsis tshua muaj neeg tsim tawm hauv 2020 los ntawm kev txhaj tshuaj ntev, tso tawm 140,000 MT. Txawm hais tias nws txoj hauj lwm saum toj kawg nkaus, Tuam Tshoj tseem tsom ntsoov rau kev ua kom ntseeg tau tias nws cov peev txheej tseem nce siab.
Pom zoo:
Qhov twg thiab thaum twg tau pib qhov luddite?
Luddite, cov tswv cuab ntawm pawg koom ua ke ntawm 19th-xyoo pua cov neeg ua haujlwm Askiv uas tau tawm tsam rau kev puas tsuaj ntawm cov tshuab textile uas tau hloov chaw. Lub zog pib nyob ib puag ncig ntawm Nottingham mus rau qhov kawg ntawm 1811 thiab xyoo tom ntej kis mus rau Yorkshire, Lancashire, Derbyshire, thiab Leicestershire.
Qhov twg yog qhov pom ib txwm pom thaum percussing thaj tsam plab?
Lub plab plab uas muaj roj ntau ib txwm muaj a tympanitic tympanitic Meteorism. Tshwj xeeb. Gastroenterology. Tympanite yog ib yam mob uas muaj roj ntau ntau hauv plab hnyuv thiab ua rau mob plab. Lo lus yog los ntawm Greek τύμπανο, "nruas"
Qhov twg los saib qhov pom kev tsis pom kev ntawm kev ua?
Koj muaj peev xwm kwj Txoj Kev Tsis Txaus Siab Ntawm Kev Ua los ntawm kev xauj lossis yuav hauv Google Play, Amazon Instant Video, thiab Vudu. Puas yog Qhov Teeb Meem Tsis Muaj Teeb Meem ntawm Kev Ua Hauv Netflix? Saib Qhov Teeb Meem Tsis Muaj Teeb Meem Ntawm Kev Nyob Netflix Hnub no!
Thaum twg cov ntaub ntawv pom pom tau tsim?
In 1644, Michael Florent Van Langren, tus kws tshawb fawb Flemish, ntseeg tias tau muab thawj qhov pom kev sawv cev ntawm cov ntaub ntawv txheeb cais. Leej twg invented data visualization? Lub xyoo 1960 thiab 1970 tau pom qhov tshwm sim ntawm cov kws tshawb fawb xws li John W.
Thaum twg Mendel qhov kev tshawb pom pom?
Mendel thawj zaug nthuav tawm nws cov txiaj ntsig hauv ob qhov kev qhuab qhia cais hauv 1865rau Natural Science Society hauv Brünn. Nws daim ntawv "Kev sim ntawm tsob nroj Hybrids" tau luam tawm nyob rau hauv lub zej zog cov phau ntawv journal, Verhandlungen des naturforschenden Vereines hauv Brünn, xyoo tom ntej.
