nov 29, 1899 - Robert Millikan: Negative Electron
Description:
In 1900, he measured the charge of an electron (-) with an experiment called oil drop experiment.
Info:
Porter. Victoria. "Atom Models Timeline". Prezi. Prezi. 9 March 2011. 3 October 2017
Picture:
"There are three types of people". me.me. np. nd. 3 October 2017
Added to timeline:
Atomic Model Timeline
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