1 juill. 1932 - Chadwick
Description:
He noticed that the atomic # (= the # of protons) was less than the mass,which meant something else in the atom added mass, but no charge. He proposed that this extra mass were Rutherford's neutrons.Ajouté au bande de temps:
Date:
1 juill. 1932
Maintenaint
~ Il y a 93 ans