nov 29, 1897 - Joseph John Thompson's model
In 1897, Joseph John Thompson discovered electron and with that information, he created his own atom model called "plum pudding model". According to that model, electron were inside the atom and distributed randomly like a plum pudding. He also described the nature of cathode rays.
Porter. Victoria. "Atom Models Timeline". Prezi. Prezi. 9 March 2011. 3 October 2017
jujube1999. "Atomic Model Timeline". TimeToast. Timetoast. 2017. 3 October 2017
Added to timeline:
Atomic Model Timeline