Discovery of Neutron
Mass of atom is more than the mass of total proton and electron present
in atom, which suggest the presence of another particle in atom which
lead the discovery of neutron.
Chadwick in 1932 discover neutral particles of mass equal to mass of proton by bombarding beryllium metal with stream of fast moving particles through cyclotron. These particle are neutral in nature so named as neutron.
Mass of neutron = 1.6748x10-27 kg
Chadwick in 1932 discover neutral particles of mass equal to mass of proton by bombarding beryllium metal with stream of fast moving particles through cyclotron. These particle are neutral in nature so named as neutron.
Mass of neutron = 1.6748x10-27 kg
There is three fundamental particles in atom
These fundamental particles are 1. Electron 2. Proton 3. Neutron