Video: Yuav ua li cas nrhiav tau lub rhenium uas ploj lawm?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv xyoo 1990, cov kws tshawb fawb tau rov tshuaj xyuas nws cov ntaub ntawv thiab txiav txim siab tias nws muaj tiag pom lub ntsiab 75, uas peb paub rhenium . Xyoo 1925, German chemists Walter Noddack thiab Ida Tacke pib txheeb xyuas cov ntxhia gadolinite. Lawv ntseeg tias lawv muaj pom lub ntsiab lus uas ploj lawm 73 nyob rau hauv lub mineral.
Kuj nug, rhenium nrhiav tau li cas?
Keeb kwm thiab kev siv: Rhenium yog nrhiav pom los ntawm German chemists Ida Tacke-Noddack, Walter Noddack thiab Otto Carl Berg nyob rau hauv 1925. Nyob rau hauv 1928, Noddack thiab Berg tau extract 1 gram ntawm rhenium los ntawm 660 kg ntawm molybdenite. Hnub no, rhenium yog tau raws li ib tug byproduct ntawm refining molybdenum thiab tooj liab.
Dab tsi yog 3 lub ntsiab lus uas ploj lawm hauv daim ntawv teev sijhawm? Ntxiv rau, Moseley lees paub qhov tsawg kawg nkaus peb tsis pom cov ntsiab lus muaj nyob nruab nrab ntawm hydrogen nrog atomic tooj 1 thiab kub uas nws tus lej atomic yog 79. Qhov ntxiv tsis muaj cov ntsiab lus , dhau ntawm peb uas Moseley nws tus kheej tau txheeb xyuas, yog lub ntsiab 72, 85, 87, thiab 91.
Ib tug kuj nug, leej twg hu ua rhenium?
Otto Berg
rhenium zoo li cas?
Rhenium yog ib tug tsawg, silvery-dawb, lustrous, ntom hlau. Nws tiv taus corrosion thiab oxidation tab sis maj mam tarnishes hauv huab cua ntub. Ntawm cov khoom, tsuas yog carbon thiab tungsten muaj cov ntsiab lus melting ntau dua thiab tsuas yog iridium, osmium, thiab platinum. yog tuab dua.
Pom zoo:
Kuv yuav nrhiav tau tus khub ploj hauv Fallout 4 li cas?
Txoj kev yooj yim tshaj plaws los nrhiav Cov Phooj Ywg Ua ntej, qhov no yog txoj hauv kev yooj yim tshaj plaws los nrhiav cov phooj ywg ploj lossis cov phooj ywg ploj lawm. Yog tias koj nkag mus rau hauv cov ntawv qhia zaub mov thaum koj nyob ntawm qhov kev sib hais haum, mus rau Cov Chaw> Lwm Yam, mus ob qho tib si, thiab koj yuav hla lub tswb
Koj pom tus lej uas ploj lawm thaum muab qhov txhais li cas?
Qhov nruab nrab ntawm ib pawg ntawm cov lej yog qhov nruab nrab ntawm cov lej. Koj tuaj yeem nrhiav cov ntsiab lus los ntawm kev ntxiv cov lej thiab faib los ntawm pes tsawg tus lej tau muab. Yog tias koj tau txais cov ntsiab lus thiab nug kom pom tus lej uas ploj lawm ntawm qhov teeb tsa, siv qhov sib npaug yooj yim
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Dab tsi yog 3 lub ntsiab lus uas ploj lawm hauv daim ntawv teev sijhawm?
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