Lub raisin pudding qauv (jujube ncuav mog qab zib qauv) tau npaj siab los ntawm Thomson thiab yog thawj tus qauv atomic nrog cov qauv subatomic.
Raws li kev tshawb pom ntawm cov khoom siv hluav taws xob, Thomson tau npaj siab atom' s raisin paj npleg qauv (hnub nucleus qauv). Thomson xav [7]:
ChargesPositive tsub kom sib txig sib luag rau cov atoms zoo li kua, thiab hluav taws xob tawg tau tawg nyob rau hauv cov nqi zoo xws li cov raisins, thiab lawv cov nqi tsis zoo tshem tawm cov nqi tsub ntxiv.
Thaum zoo siab heev, cov xaim hluav taws xob yuav tawm ntawm lub atoms, ua kom cathode rays.
Lub alpha particle sim ua (kev sim tawg) ua tiav los ntawm Thomson tus tub ntxhais kawm Rutherford tsis lees paub qhov tseeb ntawm raisin paj npleg qauv (jujube ncuav mog qab zib qauv).