Video: Dab tsi yog lwm lub npe rau alpha particle uas tawm thaum lub sij hawm alpha lwj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Alpha hais , kuj hu alpha rays lub alpha hluav taws xob , muaj ob protons thiab ob neutrons khi ua ke rau hauv ib particle zoo ib yam li helium-4 nucleus. Lawv feem ntau yog tsim hauv txheej txheem ntawm alpha lwj , tab sis kuj yuav raug tsim hauv lwm txoj kev.
Ib yam li ntawd, dab tsi tawm thaum lub sij hawm alpha lwj?
Alpha lwj los yog α - lwj yog hom radioactive lwj uas muaj atomic nucleus tawm 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.
Kuj Paub, dab tsi piav qhia txog alpha particle? 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.
Ntawm no, yuav ua li cas tshwm sim thaum ib qho alpha particle raug tso tawm?
Alpha lwj tshwm sim thaum lub nucleus tsis ruaj khov vim nws muaj ntau protons. Lub nucleus tawm ib alpha particle thiab lub zog. Ib alpha particle Nws muaj ob lub protons thiab ob lub neutrons, uas yog ib qho helium nucleus. Poob cov protons thiab neutrons ua rau lub nucleus ruaj khov.
Ib qho piv txwv ntawm 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) dhau los ua ib qho atom ntawm thorium (nrog 90 protons).
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