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apr 4, 1897 - Discovery of the Electron

Description:

Experimenting with cathode ray tubes, J. J. Thomson identifies that electonrs make up cathoder rays. He also calculated the mass of the electons and developed the plum pudding model.

Added to timeline:

History of the atom

ByBrooks Hubenett
21 Oct 2018
0
0
353

Date:

apr 4, 1897
Now
~ 129 years ago

Images:

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