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What particle did j.j. Thomson discover?
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What particle did j.j. Thomson discover?

User GThree
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"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."
Source:abcte.org
User Kullalok
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