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Dab tsi yog alpha lwj hauv chemistry?
Dab tsi yog alpha lwj hauv chemistry?

Video: Dab tsi yog alpha lwj hauv chemistry?

Video: Dab tsi yog alpha lwj hauv chemistry?
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Alpha lwj los yog α - lwj yog hom radioactive lwj nyob rau hauv uas lub atomic nucleus emits ib alpha particle (helium nucleus) thiab yog li hloov los yog ' lwj ' rau hauv ib qho txawv atomic nucleus, nrog ib tug loj tus naj npawb uas yog txo los ntawm plaub thiab ib tug atomic tooj uas yog txo los ntawm ob.

Hauv qhov no, alpha thiab beta lwj yog dab tsi?

Alpha lwj : Alpha lwj yog ib hom ntawm radioactive lwj uas ib tug nucleus emits ib alpha particle (ib helium-4 nucleus). Beta lwj : Beta lwj yog ib hom ntawm radioactive lwj nyob rau hauv uas ib tug nucleus emits beta cov khoom. Tus ntxhais nucleus yuav muaj tus lej atomic ntau dua li qub nucleus.

Ib yam li ntawd, alpha particles hauv chemistry yog dab tsi? Alpha particle , raug nqi zoo particle , zoo ib yam rau lub nucleus ntawm helium-4 atom, spontaneously emitted los ntawm ib co radioactive tshuaj, muaj ob protons thiab ob neutrons khi ua ke, yog li muaj ib tug loj ntawm plaub units thiab ib tug zoo nqi ntawm ob.

Ib yam li ntawd, piv txwv li alpha lwj yog dab tsi?

Thaum alpha lwj , atom lub nucleus tso ob protons thiab ob neutrons nyob rau hauv ib pob ntawv uas cov kws tshawb fawb hu ua alpha particle . Rau piv txwv , tom qab kev phais alpha lwj , ib qho atom ntawm uranium (nrog 92 protons) ua ib qho atom ntawm thorium (nrog 90 protons).

Yuav ua li cas koj xam alpha lwj?

Alpha decay feem ntau tsuas yog piav raws li qhov no:

  1. Lub nucleus ntawm ib qho atom faib ua ob ntu.
  2. Ib qho ntawm cov khoom no (alpha particle) mus zooming tawm mus rau hauv qhov chaw.
  3. Lub nucleus sab laug muaj nws tus lej atomic txo los ntawm 2 thiab nws cov lej txo los ntawm 4 (uas yog, los ntawm 2 protons thiab 2 neutrons).

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