Rutherford’s alpha-particle scattering experiment was responsible for the discovery of
(a) Atomic Nucleus (b) Electron
(c) Proton (d) Neutron
Answer
(a) Atomic Nucleus
Explanation -
- Proton and Electron were known before Rutherford’s experiment.
- The existence of neutrons was not known.
- It was only known after Rutherford’s alpha-particle scattering experiment that the Atomic nucleus existed.
- In the experiment a fraction of the particles bounced back at an angle of 180 o proving that nearly all the mass of an atom is contained in the nucleus.
