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Jakob Stein
15 January, 02:43
What did J. J. Thomson discover about electrons?
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Jazmine Richard
15 January, 05:49
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Answer: J. J. Thomson discovered the electron
Explanation: In 1897, J. J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged. In addition, he also studied positively charged particles in neon gas.
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