20 mars 1897 - J.J. Thomson discovered the electron and created the plum pudding model.
Description:
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.'Ajouté au bande de temps:
Date:
20 mars 1897
Maintenaint
~ Il y a 128 ans