Video: Yuav ua li cas koj pom qhov hnyav nruab nrab ntawm ib qho isotope?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov tshuaj chlorine isotope nrog 18 neutrons muaj abundance ntawm 0.7577 thiab ib tug loj tus naj npawb ntawm 35 amu. Yuav xam cov nruab nrab atomic mass, muab cov feem los ntawm tus lej loj rau txhua tus isotope , ces muab lawv ua ke.
Ib yam li ntawd, qhov hnyav nruab nrab ntawm tag nrho cov isotopes ntawm ib lub caij yog dab tsi?
Siv cov pawg ntawm qhov sib txawv isotopes thiab ntau npaum li cas txhua isotope yog, peb tuaj yeem nrhiav tau nruab nrab qhov loj ntawm cov atoms ntawm ib keeb . Lub atomic mass ntawm ib keeb yog cov hnyav nruab nrab qhov loj ntawm cov atoms nyob rau hauv ib tug natural tshwm sim qauv ntawm lub keeb . Atomic mass yog feem ntau qhia nyob rau hauv atomic mass units.
dab tsi muaj ib pawg ntawm 1 amu? Lub atomic mass unit (symbolized AMU lossis amu) yog txhais raws li qhov tseeb 1/12 qhov loj ntawm ib qho atom ntawm carbon-12. Cov pa roj carbon-12 (C-12) atom muaj rau protons thiab rau neutrons hauv nws cov nucleus. Hauv cov ntsiab lus tsis meej, ib qho AMU yog qhov nruab nrab ntawm qhov proton so mass thiab neutron so mass.
Qhov thib ob, koj ua li cas xam cov feem pua ntau ntau siv atomic mass?
Hloov txhua feem pua abundance rau hauv daim ntawv decimal los ntawm kev faib los ntawm 100. Muab cov nqi no los ntawm tus atomic loj ntawm cov isotope. Ntxiv ua ke rau txhua isotope kom tau qhov nruab nrab atomic loj.
Dab tsi yog qhov txawv ntawm atomic mass thiab atomic hnyav?
Atomic loj (mib) yog pawg ntawm ib atom . Ib leeg atom muaj cov txheej txheem ntawm protons thiab neutrons, yog li cov pawg yog unequivocal (yuav tsis hloov) thiab yog tus lej ntawm cov protons thiab neutrons hauv atom . Atomic hnyav yog qhov hnyav nruab nrab ntawm qhov pawg ntawm tag nrho cov atoms ntawm ib lub caij, raws li kev nplua nuj ntawm isotopes.
Pom zoo:
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