Video: Koj ua li cas isotopes hauv chemistry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Isotopes yog atoms nrog tib tus naj npawb ntawm protons tab sis qhov ntawd muaj ntau tus lej ntawm neutrons. Txij li thaum tus naj npawb atomic yog sib npaug rau tus naj npawb ntawm protons thiab cov atomic loj yog cov lej ntawm protons thiab neutrons, peb ua tau kuj hais tias isotopes yog cov ntsiab lus nrog tib tus lej atomic tab sis cov lej sib txawv.
Hais txog qhov no, isotopes thiab piv txwv yog dab tsi?
Cov ntsiab lus yog txhais los ntawm tus naj npawb ntawm protons hauv atomic nucleus. Rau piv txwv Ib qho atom nrog 6 protons yuav tsum yog carbon, thiab atom nrog 92 protons yuav tsum yog uranium. Ntxiv nrog rau cov protons, cov atoms ntawm yuav luag txhua lub caij tseem muaj cov neutrons. Cov no isotopes yog hu ua carbon-12, carbon-13 thiab carbon-14.
Kuj Paub, koj ua haujlwm li cas isotopes? Tus lej loj kuj tseem tuaj yeem sau ua tus sau ua ntej ntawm lub cim cim xws li ^235U. Tus naj npawb ntawm ib isotope sawv cev qhov loj ntawm cov cov isotope protons thiab neutrons. Xam tus naj npawb ntawm neutrons hauv ib qho isotope , los ntawm rho tawm tus lej atomic los ntawm tus lej loj.
Kuj tseem paub, ua li cas lub isotope tsim?
Txhua qhov sib xyaw ua ke ntawm ib lub caij nrog ntau tus lej ntawm neutrons yog hu ua ib isotope . Isotopes uas yog radioactive disintegrate los yog lwj nyob rau hauv ib txoj kev kwv yees thiab ntawm tus nqi tshwj xeeb ua lwm yam isotopes . Cov xov tooj cua isotope hu ua niam txiv, thiab isotope tsim los ntawm kev lwj yog hu ua tus ntxhais.
Isotope yooj yim txhais yog dab tsi?
isotope . Ib isotope ntawm cov khoom siv tshuaj yog ib qho atom uas muaj ntau qhov sib txawv ntawm cov neutrons (uas yog, ntau dua lossis tsawg dua atomic mass) dua li tus qauv rau lub caij ntawd. Tus naj npawb atomic yog tus naj npawb ntawm protons hauv atom lub nucleus.
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