<prompt> Bheka isigaba esingezansi bese uphendula umbuzo emva kwalokho ngolimi olufanayo nesigaba: Ukudlula: Wonke ama-proton nama-neutron aboshelwe e-athomu akha i-nucleus encane ye-athomu, futhi ngokuhlanganyela abizwa ngokuthi ama-nucleon. I-radius ye-nucleus cishe ilingana no-1.07 3A fm, lapho u-A eyisibalo esiphelele sama-nucleon. Lokhu kuncane kakhulu kunenhlaka ye-athomu, ecishe ibe ngu-105 fm. Ama-nucleon aboshelwe ndawonye amandla akhangayo asendaweni emfushane abizwa ngokuthi amandla aqinile asele. Emazingeni amancane kunama- fm angu - 2,5 la mandla anamandla kakhulu kunamandla e - electrostatic abangela ama - proton anesisindo esiqondile ukuba axoshe omunye komunye. Ama - athomu esakhi esifanayo anenani elifanayo lama - proton, elibizwa ngokuthi inombolo ye - athomu. Ngaphakathi kwesakhi esisodwa, inani lama-neutron lingase lishintshe, linqume i-isotope yalesi sakhi. Inani eliphelele lama-proton nama-neutron linquma i-nuclide. Inani lama-neutron uma liqhathaniswa nama-proton linquma ukuzinza kwe-nucleus, kuyilapho ama-isotope athile ewohloka ngokukhishwa kwemisebe. I-proton, i-electron, ne-neutron zihlukaniswa ngama-fermion. Ama-fermion alalela isimiso sokukhishwa kukaPauli esivimbela ama-fermion afanayo, njengama-proton amaningi, ukuba abe sesimweni esifanayo se-quantum ngesikhathi esifanayo. Ngakho-ke, i-proton ngayinye yenucleus kumelwe ibe sesimweni se-quantum esihlukile kuzo zonke ezinye i-proton, futhi okufanayo kuyasebenza kuwo wonke ama-neutron enucleus nakuwo wonke ama-electron e-electron cloud. I-nucleus enenombolo ehlukile yama-proton kunama-neutron ingase yehle ibe sesimweni samandla aphansi ngokubola kwe-radioactive okubangela ukuba inani lama-proton nama-neutron lifane kakhulu. Ngenxa yalokho, ama-athomu anenani elifanayo lama-proton nama-neutron azinzile kakhulu ekuwohlokeni. Nokho, njengoba inani lama-athomu landa, ukungezwani kwama-proton kudinga inani elandayo lama-neutron ukuze kugcinwe ukuzinza kwe-nucleus, okuguqula kancane lokhu kuthambekela kwenani elilinganayo lama-proton nama-neutron. Umbuzo: Lezi zinto zibizwa ngokuthini?  <response>: ama-nucleon 