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mar 16, 1897 - J J Thompson 1856-1940

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In 1897, J.J. Thomson discovered the electron. In addition, he also studied positively charged particles in neon gas. Experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged.

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ByGraysen Hadeen
9 Nov 2017
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Date:

mar 16, 1897
Now
~ 129 years ago

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