9 janv. 1939 - 1932 AD: James Chadwick, working with nuclear physics used alpha particles and discovered the neutron, the same mass as a proton and is found in the nucleus. They also had no charge and this model was a major improvement from Bohr’s model.
Ajouté au bande de temps:
Date:
9 janv. 1939
Maintenaint
~ Il y a 86 ans