who discovered electron proton and neutron??
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The Discovery of the Electrons Protons and Neutrons[edit] The Electron was discovered in 1897, by the British physicist J. J. Thomson , using a cathode rays while doing discharge tube experiments. Thomson also determined e/m, ratio of the charge e to the mass m of the material particle which constituted these rays.
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Electron - JJ Thompson
Proton - Rutherford
Neutron - James Chadwick
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