Alpha particle scattering sim ua
Los ntawm 1904 txog Lub Rau Hli 1906, Rutherford tau ua ntau yam alpha rays los ntawm huab cua ntawm cov tuab sib txawv,
Kev sim ntawm mica flakes thiab hlau ntawv ci (xws li ntawv ci txhuas). Tus kws tshaj lij Askiv British WH Prague (Bragg, WH1862-1942) kuj tau sim rau qhov kev sim no thaum xyoo 1904-1905. Lawv pom tias hauv qhov kev sim no alpha ray khiav ceev tau qeeb thiab khiav cov dej tau raug tso tawm (piv txwv li, qhov tshwm sim ntawm tawg tawg). Piv txwv li, qee lub alpha rays dhau mus mica yog deflected li ntawm 2 ° los ntawm lawv txoj kev qub, thiab lub kaum sab xis me me tawg tawg tau tshwm sim. Lub caij ntuj no xyoo 1906, Rutherford kuj tseem pom tau tias alpha particles tuaj yeem tsoo thaum lawv siab dua qee qhov kev mob siab ceev. Rau hauv lub atom, qauv sab hauv ntawm atom tuaj yeem tshawb tau los ntawm nws qhov tawg thiab cov tshuaj tiv thaiv los ntawm hluav taws xob hluav taws xob hauv lub atom. Thiab nws kuj pom tias qhov yuav txawv qhov loj dua tuaj.