Correct option is C
The correct answer is (c) Neutron.
· James Chadwick, a British physicist, discovered the neutron in 1932.
· The neutron is a sub-atomic particle with no electric charge and a mass slightly greater than that of a proton.
· Chadwick's discovery was crucial for the advancement of nuclear physics and played a key role in the development of nuclear reactors and atomic bombs.
· For his discovery, Chadwick was awarded the Nobel Prize in Physics in 1935.
Information Booster:
· Neuron: A neuron is a nerve cell in the body, not a sub-atomic particle.
· Proton: The proton, a positively charged sub-atomic particle, was discovered by Ernest Rutherford in 1917.
· Electron: The electron, a negatively charged sub-atomic particle, was discovered by J.J. Thomson in 1897.