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feb 14, 1897 - J.J. Thompson - 1897

Description:

J.J. Thomson discovered the electron by experimenting with a Crookes, or cathode ray, tube. He demonstrated that cathode rays were negatively charged.

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The History of the Atom

ByChinmay
10 Oct 2017
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Date:

feb 14, 1897
Now
~ 128 years ago
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