Question

who discovered protons & neutrons ​

Answer 1

Answer:

The discovery of electron proton and neutron was done by J. J. Thompson, Ernest Rutherford, and James Chadwick, respectively. Many other scientists initiated the process of discovery but were unable to conclude what these subatomic particles were.

• By 1920, physicists knew that most of the mass of the atom was located in a nucleus at its center, and that this central core contained protons. In May 1932 James Chadwick announced that the core also contained a new uncharged particle, which he called the neutron.
• It is 100 years since Ernest Rutherford published his results proving the existence of the proton