Qhov txheeb ze feem pua yog dab tsi?
Qhov txheeb ze feem pua yog dab tsi?

Video: Qhov txheeb ze feem pua yog dab tsi?

Video: Qhov txheeb ze feem pua yog dab tsi?
Video: Tshuaj theem vim li cas thiaj tau nqi ?/ Siv kho mob dab tsi?/paris polyphylla use for? 2024, Kaum ib hlis
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Isotopes muaj ntau atomic masses. Cov txheeb ze ntawm ib qho isotope yog qhov feem pua ntawm atoms nrog ib tug tshwj xeeb atomic loj pom nyob rau hauv ib tug lawm tshwm sim qauv ntawm anelement.

Ib yam li ntawd, koj yuav suav li cas feem pua txheeb ze?

Teeb Kev nplua nuj Sib npaug rau x Cia x sib npaug feem pua abundance ntawm ib qho ntawm ob isotopes. Lwm qhov isotope yuav tsum muaj kev nplua nuj ntawm 100 feem pua nqe x feem pua , uas koj qhia nyob rau hauv daim ntawv decimal li (1 - x). Rau nitrogen, koj tuaj yeem muab x sib npaug rau kev nplua nuj ntawm N14 thiab (1 - x) as the kev nplua nuj ntawm N15.

Ib yam li ntawd, dab tsi yog qhov txheeb ze ntau hauv chemistry? Cov ' txheeb ze abundance ' ntawm ib qho isotope txhais tau hais tias feem pua ntawm cov isotope tshwj xeeb uas tshwm sim hauv qhov xwm txheej. Cov ntsiab lus feem ntau yog tsim los ntawm kev sib xyaw ntawm isotopes. Cov lej ntawm cov feem pua ntawm cov isotopes tshwj xeeb yuav tsum ntxiv txog 100%. Cov kwv tij atomic mass yog qhov hnyav nruab nrab ntawm cov isotopicmasses.

Ntxiv mus, puas txheeb ze abundance zoo ib yam li feem pua abundance?

Qhov txawv ntawm txheeb ze abundance thiab feem pua abundance yog tias txheeb ze abundance hais txog tus naj npawb ntawm cov khoom qab zib koj siv hauv qhov kev sim, qhov twg raws li qhov Feem pua kev nplua nuj yog xa mus rau ntau npaum li cas ntawm cov khoom qab zib muaj nyob rau hauv txhua puas candies.

Dab tsi yog feem pua natural abundance?

Hauv physics, ntuj abundance (NA) hais txog lub kev nplua nuj ntawm isotopes ntawm cov tshuaj lom neeg xws li ib txwm pom ntawm lub ntiaj teb. Tus txheeb ze atomic mass (aweighted nruab nrab, hnyav los ntawm mole-fraction kev nplua nuj cov duab) ntawm cov isotopes no yog qhov hnyav atomic teev rau lub ntsiab lus hauv lub sijhawm.

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