26 mars 1932 - James Chadwick: Played a vital role in the atomic theory, as he discovered the Neutron in atom; Neutrons are located in the center of an atom, in the nucleus along with the protons. They have neither a positive nor negative charge, but contribute the the atomic weight with the same effect as a proton.
Ajouté au bande de temps:
Date:
26 mars 1932
Maintenaint
~ Il y a 93 ans