Cov txheej txheem:
Video: Cov hom kev lwj yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
n. (Nuclear Physics) disintegration ntawm ib tug nucleus uas tshwm sim spontaneously los yog los ntawm electron capture. Ib los yog ntau lub nuclei sib txawv yog tsim thiab feem ntau hais thiab gamma rays raug tso tawm. Qee zaum luv rau: lwj Kuj hu ua: disintegration.
Yog li ntawd, dab tsi yog radioactivity thiab nws hom?
Xov tooj cua hais txog cov khoom uas tau tawm los ntawm nuclei los ntawm kev tsis muaj zog ntawm nuclear. Feem ntau hom ntawm hluav taws xob hu ua alpha, beta, thiab gamma hluav taws xob, tab sis muaj ob peb lwm yam ntawm xov tooj cua lwj.
Yuav ua li cas koj nrhiav tau hom ntawm radioactive decay? Kev kwv yees Radioactive Decay Hom Rau cov ntsiab lus uas muaj tus lej atomic tsawg dua 20, qhov N / Z piv ntawm 1 qhia tias ib qho isotope ruaj khov. Isotopes nrog ib qho N / Z piv uas loj dua 1, uas sib haum mus rau ntau tshaj ntawm cov neutrons, yuav undergo beta lwj.
Ntawm no, peb hom ntawm radioactive decay yog dab tsi?
Ua ke, muaj peb hom loj ntawm nuclear lwj uas xov tooj cua Cov khoom tuaj yeem nkag mus: alpha, beta, lossis gamma lwj . Txhua hom emits ib particle los ntawm lub nucleus. Alpha hais yog lub zog helium nuclei uas muaj 2 protons thiab 2 neutrons.
Dab tsi yog 5 hom xov tooj cua decay?
Muaj 5 yam sib txawv ntawm cov xov tooj cua decay
- Alpha lwj ua raws li daim ntawv:
- Beta negative decay ua raws li daim ntawv:
- Gamma decay ua raws li daim ntawv:
- Positron emission (tseem hu ua Beta positive decay) ua raws li daim ntawv:
- Electron capture ua raws li daim ntawv:
Pom zoo:
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