2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Ytterbium yog cov khoom siv tshuaj nrog lub cim Yb thiab tus lej atomic 70. Nws yog lub kaum plaub thiab penultimate nyob rau hauv lanthanide series, uas yog lub hauv paus ntawm cov txheeb ze stability ntawm nws +2 oxidation xeev.
Yetterbium nyob qhov twg?
thawj cov ntsiab lus ntawm ytterbium tau txais hauv xyoo 1878 los ntawm Swiss chemist Jean-Charles Galissard de Marignac thiab muab nws lub npe rau lub nroog ntawm Ytterby, Sweden, qhov twg nws (thiab cov thawj zaug pom lub ntiaj teb tsis tshua muaj, yttrium) tau pom.
Ytterbium feem ntau pom nyob qhov twg?
Ytterbium pom nrog lwm yam tsis tshua muaj hauv ntiaj teb hauv ntau cov ntxhia tsis tshua muaj. Nws yog feem ntau rov qab ua lag luam los ntawm monazite xuab zeb (0.03% ytterbium). Lub caij tseem muaj nyob rau hauv euzenite thiab xenotime. Cov chaw mining tseem ceeb yog Tuam Tshoj, Tebchaws Meskas, Brazil, Is Nrias teb, Sri Lanka, thiab Australia.
Kuv yuav tau ytterbium li cas?
Hnub no, ytterbium feem ntau tau txais los ntawm an ion txauv txheej txheem los ntawm monazite xuab zeb ((Ce, La, Th, Nd, Y)PO 4), cov khoom muaj nplua nuj nyob hauv lub ntiaj teb tsawg. Ytterbium muaj ob peb siv.
Yog ytterbium yog lub ntiaj teb tsis tshua muaj?
Ytterbium yog ib qho mos, malleable thiab ductile lub caij uas nthuav tawm lub ci ci ci ci. Lub ntiaj teb tsis tshua muaj, lub ntsiab lus tau yooj yim tawm tsam thiab yaj los ntawm cov ntxhia acids, maj mam reacts nrog dej, thiab oxidizes hauv huab cua. Cov oxide tsim ib txheej tiv thaiv ntawm qhov chaw. Cov ntsiab lus ntawm ytterbium yograre.
Pom zoo:
Puas yog nws tsis pom zoo lossis tsis pom zoo?
verb (siv nrog cov khoom), dis·app·proved, dis·ap·prov·ing. xav (ib yam dab tsi) tsis ncaj ncees lawm los yog reprehensible; censure los yog condemn nyob rau hauv lub tswv yim. kom tsis txhob pom zoo los ntawm; Tsis kam rau txim: Senate tsis pom zoo rau kev xaiv tsa.
Puas yog ytterbium puas muaj valence electrons?
Cov hlau tsis tshua muaj hauv ntiaj teb muaj qhov sib npaug ntawm peb; Txawm li cas los xij, cov cerium yog 3.2, thiab europium thiab ytterbium yog divalent. Qhov no yog qhov pom tseeb heev thaum cov hlau hluav taws xob tau teeb tsa piv rau tus lej atomic.
Puas yog pov thawj uas tsis pom zoo lossis tsis pom zoo nrog kev sib cav?
Cov lus foob: Ib qho kev thov uas tsis pom zoo lossis tsis pom zoo nrog qhov thesis / thov. (Qhov no yuav yog tus neeg tawm tsam qhov kev xav.) Rebuttal: Cov pov thawj uas tsis pom zoo lossis tsis pom zoo rau qhov kev foob foob. (Nov yog qhov uas tus menyuam kawm ntawv teb rau tus yeeb ncuab thiab qhia tias vim li cas lawv qhov kev sib cav tsis muaj zog.
Puas yog lub titanic tog vim yog qhov pom qhov muag pom?
Kev tshawb fawb tshiab tshiab rau hauv lub dab dej ntawm Titanic tau nthuav tawm lub nkoj poob vim tias cov dej khov tau zais los ntawm qhov pom qhov muag pom. Ib tus kws tshaj lij hauv ntiaj teb ntawm cov neeg caij tsheb uas tsis muaj kev puas tsuaj tau pom cov pov thawj "
Puas tau pom Mauxe lub ntxa puas tau pom?
Mauxes tau hais tias tau tuag hauv Mount Nebo, Jordan. Raws li Vajluskub hais, qhov chaw tseeb ntawm Mauxes lub ntxa tseem tsis paub, txhawm rau tiv thaiv kev pe mlom. Lub ntxa ntawm Aaron, nyob rau hauv Mount Harun, ze Petra, Jordan. Adas thiab Eva faus nyob qhov twg?
