Atoms emit beta hais los ntawm cov txheej txheem hu ua beta lwj. … Ib hom (zoo beta decay) tso ib tug zoo them beta particle hu ua a positron, thiab ib tug neutrino; Lwm hom (tsis zoo beta lwj) tso tawm qhov tsis zoo ntawm beta particle hu ua electron, thiab antineutrino.
Yuav ua li cas thaum lub atom tso tawm beta particle?
Beta decay
A beta particle forms thaum a neutron hloov mus rau hauv proton thiab lub zog hluav taws xob siab. Cov proton nyob twj ywm hauv cov nucleus tab sis cov electron tawm ntawm lub atom ua ib qho beta particle. Thaum ib tug nucleus emit ib tug beta particle, cov kev hloov no tshwm sim: tus naj npawb atomic nce 1.
Yuav ua li cas thaum muaj beta particle tawm?
Beta rho tawm particle (β-) emission tshwm sim thaum qhov piv ntawm neutrons rau protons hauv lub nucleus siab dhau… nyob rau hauv lub nucleus thiab lub electron yog ejected energetically. Cov txheej txheem no txo tus naj npawb ntawm cov neutrons los ntawm ib qho thiab nce cov protons los ntawm ib qho.
Dab tsi hloov ntawm lub atom uas dhau mus rau beta emission?
Thaum beta lwj the atomic mass nce. Qhov no yog vim thaum lub sij hawm beta decay ib neutron decays rau hauv ib tug proton. Ib qho hluav taws xob tawm ntawm lub nucleus - qhov no yog beta particle. Raws li qhov tshwm sim ntawm kev tsim cov proton tshiab, cov atomic loj nce.
Puas beta emission tsim cov khoom tshiab?
Cov huab cua ntawm lub cev no tshwm sim los ntawm lub hauv paus ntawm lub xov tooj cua isotope thiab vim li ntawd, lawv cov emissions los ntawm lub nucleus ua rau lub nucleus nws tus kheej hloov pauv. Lub nucleus hloov pauv tseem ceeb ua rau new keeb (los yog isotope) raug tsim.
