mar 17, 1932 - james chadwick
Description:
played a vital role in the atomic theory, as he discovered the Neutron in atoms. 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.Added to timeline:
Date:
mar 17, 1932
Now
~ 93 years ago