Video: Ib qho isotope tsim li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Zaj dab neeg luv luv, isotopes tsuas yog atoms nrog ntau neutrons - lawv yog ib qho tsim txoj kev ntawd, enriched nrog neutrons tej lub sij hawm nyob rau hauv lawv lub neej, los yog yog originated los ntawm nuclear txheej txheem uas hloov atomic nuclei. Yog li ntawd, lawv daim ntawv zoo li tag nrho lwm cov atoms.
Kuj nug, dab tsi yog isotope thiab lawv tsim li cas?
Ib isotope yog ib qho ntawm ob lossis ntau dua daim ntawv ntawm tib yam tshuaj. txawv isotopes ntawm ib lub caij muaj tib tus naj npawb ntawm protons nyob rau hauv lub nucleus, muab lawv tib lub atomic tooj, tab sis ib tug txawv tus naj npawb ntawm neutrons muab txhua lub ntsiab. isotope sib txawv atomic hnyav.
Tsis tas li ntawd, dab tsi yog isotopes rau dummies? Isotopes yog cov atoms uas muaj tib tus naj npawb ntawm protons thiab electrons, tab sis muaj pes tsawg tus neutrons. Hloov cov naj npawb ntawm neutrons hauv ib lub atom tsis hloov lub caij. Atoms ntawm cov ntsiab lus nrog ntau tus lej ntawm neutrons hu ua " isotopes "ntawm qhov khoom.
Tsis tas li ntawd, 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.
Yuav ua li cas koj thiaj paub yog hais tias lub ntsiab yog ib qho isotope?
Saib ntawm lub atom nyob rau hauv lub sij hawm ntawm lub ntsiab lus thiab nrhiav pom nws lub atomic mass yog dab tsi. Tshem tawm tus naj npawb ntawm protons los ntawm atomic mass. Qhov no yog tus naj npawb ntawm neutrons uas niaj hnub version ntawm lub atom muaj. Yog tus naj npawb ntawm neutrons hauv qhov muab atom yog txawv, tshaj nws yog ib isotope.
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