15 avr. 1932 - James Chadwick - Discovery of Neutron (1932)
Description:
Chadwick found an unknown radiation when experimenting with beryllium atoms and alpha particles which was made up of neutral particles. These particles are called electrons and have approximately the same mass as protons.Ajouté au bande de temps:
Date:
15 avr. 1932
Maintenaint
~ Il y a 92 ans
