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jan 1, 1904 - Japanese physicist Hantaro Nagaoka refines the atomic model

Description:

Nagaoka refined the model to a solar system shaped system with the nucleus as a positive sphere with orbitiong negitive electrons.
photo credit: https://www.universetoday.com/wp-content/uploads/2009/09/rutherford-atom.png https://www.geek.com/wp-content/uploads/2013/05/orbital.jpg

Added to timeline:

Date:

jan 1, 1904
Now
~ 121 years ago

Images: