20 mar 1897 año - J.J. Thomson discovered the electron and created the plum pudding model.
Descripción:
Thomson discovered the electron by experimenting with a Crooks. The plum pudding had first shown that atoms had a positive and negative charge. These were named 'Proton and Electron.'
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Atomic Theory Timeline
This is scientists that came up with some of the 'Atomic The...
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