An atomic nucleus
is a compact bundle o the twa types o nucleons: Protons
(reid) an neutrons
(blue). In this pictur, the protons an neutrons leuk lik little baws stuck thegither, but an actual nucleus, as unnerstuid bi modren nuclear pheesics
, disna leuk lik this. An actual nucleus can anerly be accurately descrived uisin quantum mechanics
. For example, in a real nucleus, each nucleon is in multiple locations at ance, spread ootthrou the nucleus.