Question

Match the sub-atomic particles with the scientists who discovered them:

• A. J.J. Thomson
• B. E. Goldstein
• C. J. Chadwick

Answer 1

J.J. Thomson conducted the cathode ray experiment and proved the presence of negatively charged particles called electrons.

E. Goldstein in 1886, used anode rays to prove the existence of positively charged particles and named them protons.

In 1932, James Chadwick experimentally proved the presence of neutral atomic particles and named them neutrons.