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dec 13, 1897 - J.J thomson cathode ray tube experiment- electron, the first of the subatomic particlescathode rays were made of electrons, very small negatively charged particles.
Added to timeline:
atomic time line
By
Juliana Darragh
19 Oct 2018
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0
354
Date:
dec 13, 1897
Now
~ 127 years ago
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