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J.J. Thomson discovered the electron in 1897 through cathode ray experiments and proposed the plum pudding model of the atom in 1904.
J.J. Thomson is credited with the discovery of the electron in 1897 through his cathode ray experiments. This discovery led to the proposal of the plum pudding model of the atom in 1904 by Thomson. The electron was identified as the smallest electric charge by Thomson.
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