In beta minus decay, a neutron decays into proton, an electron, and an antineutrino: n Æ p + e - +. … Ib qho kev sib cais ntawm cov neutron tsis ruaj khov thiab yuav lwj nrog ib nrab hnub ntawm 10.5 feeb. Ib tug neutron nyob rau hauv ib tug nucleus yuav lwj yog hais tias ib tug ruaj khov nucleus tshwm sim; Ib nrab-lub neej ntawm kev lwj yog nyob ntawm isotope.
Yuav ua li cas rau tus lej atomic hauv beta rho tawm decay?
Beta decays zoo li tso cai rau lub nucleus mus rau qhov zoo tshaj plaws proton / neutron piv. … Raws li qhov tshwm sim ntawm beta decays, qhov loj ntawm cov atoms tseem zoo li qub, tab sis tus lej atomic hloov: tus lej atomic nce hauv qhov tsis zoo beta lwj thiab txo qis hauv qhov zoo beta lwj, raws.
Yuav ua li cas rau quarks hauv beta rho tawm?
Nyob rau hauv beta ntxiv rau lwj ib qho quark hloov mus rau hauv quark nrog lub emission ntawm ib tug positron thiab ib tug neutrino, thaum nyob rau hauv beta minus decay ib tug down quark hloov mus rau hauv ib tug nce quark nrog lub emission ntawm ib tug electron thiab anti-neutrino. Lub quarks tau tuav ua ke hauv lub nucleus los ntawm lub zog muaj zog nuclear.
β − lwj cuam tshuam li cas rau tus lej loj thiab tus lej atomic ntawm niam txiv atom?
Yog li, qhov zoo ntawm beta lwj ua rau tus ntxhais nucleus, tus naj npawb atomic uas yog ib qho tsawg dua nws niam nws txiv thiab cov lej ntawm cov uas yog tib yam. … Raws li nyob rau hauv positron emission, lub nuclear zoo nqi thiab li no tus atomic tooj txo los ntawm ib chav tsev, thiab cov huab hwm coj tseem yogtib yam.
5 hom xov tooj cua decay yog dab tsi?
hom xov tooj cua tshaj plaws yog α lwj, β lwj, γ emission, positron emission, thiab electron capture. Nuclear cov tshuaj tiv thaiv kuj feem ntau koom nrog γ rays, thiab qee qhov nuclei lwj los ntawm electron capture. Txhua hom kev lwj no ua rau kev tsim cov nucleus tshiab nrog kev ruaj khov dua n:p. ratio.
