Video: Dab tsi yog cov isotopes ntawm cobalt?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Isotopes ntawm cobalt . Ntuj tshwm sim cobalt (27 Co ) yog tsim los ntawm 1 ruaj khov isotope , 59 Co . 28 lub xov tooj cua isotopes tau pom tias muaj qhov ruaj khov tshaj plaws Co nrog ib nrab-lub neej ntawm 5.2714 xyoo, 57 Co nrog ib nrab-lub neej ntawm 271.8 hnub, 56 Co nrog ib nrab neej ntawm 77.27 hnub, thiab 58 Co nrog ib nrab-lub neej ntawm 70.86 hnub.
Tsis tas li ntawd, muaj pes tsawg isotopes ntawm cobalt muaj?
22 cov isotopes
Qhov thib ob, cov khoom dab tsi yog ua los ntawm cobalt? Cobalt iav insulators, xim xim, xyaum, milling khoom thiab steel alloy yog tag nrho cov khoom ua nrog cobalt . Cobalt steel yog tawv, muaj zog thiab tshav kub-resistant txaus ua rau hauv qhov chaw rau dav hlau cav thiab propellers.
Hais txog qhov no, siv cov isotope ntawm cobalt yog dab tsi?
Cobalt -60. Cobalt -60 (60Co) ua siv rau radiotherapy kev kho mob qog noj ntshav, zaub mov irradiation thiab cov ntawv thov kev lag luam. Raws li cobalt -60 decays rau hauv ib tug ruaj khov nickel-60 isotope , ob lub wavelengths ntawm high-zog gamma-rays raug tso tawm (1.17 thiab 1.33 MeV- nruab nrab ntawm 1.25 MeV siv ).
Dab tsi yog qhov luster ntawm cobalt?
nws yog xim hlau
Pom zoo:
Dab tsi yog cov cim kev phom sij ntawm cov kua qaub los nag ntawm cov dej hauv dej?
Lus Nug: Cov cim qhia phom sij ntawm cov kua qaub los ntawm cov dej hauv lub cev yog dab tsi? Teb: Qee cov cim qhia suav nrog qhov nce hauv pH ntawm cov dej, cov nroj tsuag tuag lossis tuag, tsis muaj ntses / ntses tuag ntab, thiab tsis hnov tsw ntawm cov qe lwj (sulfur)
Dab tsi txaus ntshai zoo kawg li nws yog qhov peb yuav tsum tau khawb trenches thiab sim cov roj npog qhov ncauj qhov ntswg ntawm no vim muaj kev sib cav nyob hauv lub tebchaws nyob deb ntawm cov neeg uas peb tsis paub dab tsi?
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Dab tsi yog cov cuab yeej lossis cov txheej txheem siv los hloov cov ntaub ntawv kev ua haujlwm rau hauv cov ntaub ntawv kev ua haujlwm hauv cov txheej txheem tswj Scope?
Variance Analysis yog ib qho cuab yeej & Cov txheej txheem ntawm Kev Tswj Scope Txheej Txheem thiab Kev Ntsuas Kev Ua Haujlwm Ua Haujlwm (WPM) yog qhov tso tawm ntawm cov txheej txheem no
Tshooj 404 xav tau dab tsi ntawm kev tswj hwm cov ntaub ntawv tswj xyuas sab hauv tshawb fawb lub tuam txhab pej xeem thiab piav qhia txog kev tswj hwm cov ntaub ntawv ntawm kev tswj hwm sab hauv kom ua tau raws li cov cai ntawm ntu 40
Txoj Cai Sarbanes-Oxley xav kom cov kev tswj hwm ntawm cov tuam txhab pej xeem ntsuas qhov ua tau zoo ntawm kev tswj hwm sab hauv ntawm cov neeg tawm tswv yim rau kev tshaj tawm nyiaj txiag. Tshooj 404(b) xav kom ib lub tuam txhab tuav pov hwm tus neeg soj ntsuam los ua pov thawj rau, thiab tshaj tawm txog, kev tswj xyuas kev ntsuam xyuas ntawm nws cov kev tswj hwm sab hauv
Dab tsi yog qhov sib txawv ntawm cov paj laum yooj yim thiab cov paj laum sib txuas Vim li cas koj thiaj li xaus nrog cov nyiaj ntau nrog cov paj laum?
Txawm hais tias ob hom kev txaus siab yuav loj hlob koj cov nyiaj hauv lub sijhawm, muaj qhov sib txawv loj ntawm ob. Tshwj xeeb, cov paj laum yooj yim tsuas yog them rau tus thawj tswj hwm, thaum cov paj laum sib txuas tau them rau tus thawj tswj hwm ntxiv rau tag nrho cov paj laum uas tau ua dhau los