Electron was discovered by J. J THOMSON in 1897.
Neutron was discovered by James Chadwick in 1932.
Proton was discovered by E. Rutherford in 1909.
On of the most fascinating thing about these geniuses is that the student of J. J THOMSON was E. Rutherford and the student of E. Rutherford was James Chadwick. These scientists sequencly discovered electron, proton and neutron.
Science Lover 