cuteallycat
cuteallycat
23-03-2017
Chemistry
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what particle did j.j. Thomson discover?
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Аноним
Аноним
23-03-2017
"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
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