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jan 1, 1897 - J.J. Thomson

Description:

The British physicist discovered that all atoms contain electrons after experimenting with cathode ray tubes. His discovery allowed him to create an atomic model that had negatively charged electrons embedded in positively charged "soup". This was called the Plum Pudding atomic model.

Added to timeline:

Atomic Theory

ByAshley Westering
1 Jan 2020
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Date:

jan 1, 1897
Now
~ 129 years ago
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