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Question

By whom was the neutron discovered?

This question was previously asked in
RPF SI 2018 Question Paper PDF (10-Jan-2019) (Shift 1)
The correct answer is

James Chadwick

The neutron is an electrically neutral subatomic particle found in the nucleus of an atom, with a mass slightly greater than that of a proton.

It was discovered in 1932 by the British physicist James Chadwick, who bombarded beryllium with alpha particles and studied the resulting radiation.

He was awarded the Nobel Prize in Physics in 1935 for this discovery.

The electron was discovered by J. J. Thomson and the proton is credited to Ernest Rutherford.

Hence, James Chadwick.

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