1 gen 1932 anni - JAMES CHADWICK (1892-1974 CE)
date of discovery (1932 CE)
Atom is composed of a nucleus
containing neutrons (no electric
charge) and protons (positively
charged) with electrons (negatively
charged) orbiting the nucleus at
separate levels.
Discovered the existence of the
neutron by bombarding beryllium
with alpha particles.
His findings were pivotal to the
discovery of nuclear fission and
ultimately the development of
the atomic bomb.
