Dab tsi yog isotope hauv science?
Dab tsi yog isotope hauv science?

Video: Dab tsi yog isotope hauv science?

Video: Dab tsi yog isotope hauv science?
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Isotopes yog cov variants ntawm ib yam tshuaj uas txawv nyob rau hauv neutron tooj, thiab thiaj li nyob rau hauv nucleon tooj. Tag nrho isotopes ntawm ib lub ntsiab lus muaj tib tus lej ntawm protons tab sis sib txawv ntawm cov neutrons hauv txhua lub atom.

Xav txog qhov no, dab tsi yog isotope yooj yim txhais?

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.

Kuj Paub, dab tsi yog isotope menyuam txhais? Isotopes yog atoms uas muaj tib tus naj npawb ntawm protons thiab electrons, tab sis ib tug txawv tus naj npawb ntawm neutrons. Hloov cov naj npawb ntawm cov 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.

Dab tsi yog isotope nrog piv txwv?

Rau piv txwv Ib qho atom nrog 6 protons yuav tsum yog carbon, thiab atom nrog 92 protons yuav tsum yog uranium. Ib daim ntawv thib peb ntawm hydrogen hu ua tritium muaj ib qho proton thiab ob lub neutrons: nws cov lej yog 3. Thaum lub caij lub atoms muaj cov lej sib txawv ntawm cov neutrons lawv tau hais tias yog isotopes ntawm lub ntsiab.

Dab tsi yog isotopes siv rau?

Xov tooj cua isotopes nrhiav kev siv hauv kev ua liaj ua teb, kev lag luam khoom noj, tshuaj tua kab, archaeology thiab tshuaj. Radiocarbon dating, uas ntsuas lub hnub nyoog ntawm cov khoom uas muaj cov pa roj carbon monoxide, siv cov xov tooj cua isotope lub npe hu ua carbon-14. Hauv tshuaj, gamma rays tawm los ntawm cov khoom siv hluav taws xob yog siv rau kuaj cov qog hauv tib neeg lub cev.

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