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jan 1, 1897 - JJ Thompson

Description:

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

Added to timeline:

28 Sep 2018
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696
Atomic history

Date:

jan 1, 1897
Now
~ 126 years ago

Images:

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