Ntau yam tseem ceeb, lossis subatomic, cov khoom ntawm cov khoom muaj cov khoom siv hluav taws xob. Piv txwv li, electrons muaj cov nqi tsis zoo thiab cov protons muaj cov nqi zoo, tab sis cov neutrons muaj pes tsawg tus nqi.
Dab tsi yog qhov tsis zoo them nqi hu ua?
Electron: Ib qho teeb meem tsis zoo pom pom ncig los yog orbiting lub atomic nucleus. Ib tug electron, zoo li ib tug proton yog ib tug nqi particle, txawm hais tias opposite nyob rau hauv kos npe rau, tab sis tsis zoo li ib tug proton, ib tug electron muaj negligible atomic mass. Electrons tsis muaj atomic mass units rau tag nrho atomic hnyav ntawm ib atom.
Puas muaj cov khoom tsis zoo uas muaj nyob hauv ib lub atom?
Tus nqi tsis zoo ntawm lub atom hu ua Electron. Cov txheej txheem thiab kev ua haujlwm ntawm qhov teeb meem yog hu ua atom. Atom yog tsim los ntawm peb subatomic hais xws li Proton, neutron, thiab electron. Cov qauv ntawm lub atom yog tsim los ntawm ib tug nucleus nyob rau hauv nruab nrab ib ncig ntawm lub orbit.
Vim li cas electron tsis zoo?
Tus nqi hluav taws xob yog lub cev ntawm qhov teeb meem. Nws yog tsim los ntawm qhov tsis sib xws hauv cov khoom muaj pes tsawg leeg ntawm protons thiab electrons. Qhov teeb meem yog qhov zoo yog tias nws muaj ntau dua protons dua li cov electrons, thiab nws tsis zoo them yog tias nws muaj ntau dua electrons dua protons.
Dab tsi yog qhov tsis muaj nqi?
Neutron , nruab nrab subatomic particle uas yog ib feem ntawm txhua atomic nucleus tshwj tsis yog tib yamhydrogen. Nws tsis muaj hluav taws xob thiab qhov seem seem sib npaug rau 1.67493 × 10 - 27 kg-marginally ntau dua li ntawm cov proton tab sis ze li 1,839 zaus ntau dua li ntawm cov electron.
