[[1]], and are the three subatomic particles in an atom.

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Detailed Solution

●        Protons are positively charged subatomic particles. The number of protons in an atom is the same as the number of electrons. Ernest Rutherford is credited with the discovery of protons.
●        Electrons are negatively charged subatomic particles. In their atoms, these elements contain the same number of electrons and protons. J. Thompson is credited with identifying electrons since he was the first to precisely determine the mass and charge of an electron.
●        Neutrons are subatomic particles with no charge. Due to differences in the amount of neutrons in their respective nuclei, the masses of two distinct isotopes of an element differ. In the year 1932, James Chadwick discovered the neutron.

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