Video: Yuav ua li cas peb thiaj paub tias muaj isotopes?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Isotopes yog atoms ntawm tib lub caij nrog ntau pawg. Lawv tau txais cov pawg sib txawv no los ntawm muaj cov lej sib txawv ntawm cov neutrons hauv lawv cov nucleii. Isotopes ntawm atoms uas tshwm sim Nyob rau hauv cov xwm tuaj nyob rau hauv ob lub flavors: ruaj khov thiab tsis ruaj khov (radioactive).
Tsuas yog li ntawd, koj txiav txim siab li cas isotopes?
Tshem tawm tus lej atomic (tus naj npawb ntawm cov protons) los ntawm qhov hnyav atomic sib npaug. Qhov no muab koj tus naj npawb ntawm neutrons nyob rau hauv feem ntau isotope . Siv lub rooj sib tham sib tham ntawm lub sijhawm Berkeley Laboratory Isotopes Qhov project rau nrhiav lwm yam isotopes ntawm cov khoom ntawd muaj nyob.
Ib yam li ntawd, muaj pes tsawg isotopes muaj? Cov naj npawb ntawm isotopes nyob rau hauv tag nrho, nyob ntawd yog 252 nuclides uas tsis tau pom kom lwj. Rau 80 lub ntsiab lus uas muaj ib lossis ntau qhov ruaj khov isotopes , tus naj npawb nruab nrab ntawm qhov ruaj khov isotopes yog 252/80 = 3.15 isotopes rau lub ntsiab.
Tsis tas li ntawd, vim li cas cov isotopes muaj nyob?
Lub atom ntawm cov tshuaj muaj peev xwm muaj nyob rau hauv ntau hom. Cov no yog hu ua isotopes . Vim txawv isotopes muaj ntau tus lej ntawm neutrons, lawv ua tsis yog txhua tus hnyav tib yam lossis muaj tib lub loj. txawv isotopes ntawm tib lub caij muaj tib tus lej atomic.
Dab tsi yog isotopes thiab piv txwv?
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.
Pom zoo:
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