1 janv. 1897 - J.J. Thomson
Description:
The British physicist discovered that all atoms contain electrons after experimenting with cathode ray tubes. His discovery allowed him to create an atomic model that had negatively charged electrons embedded in positively charged "soup". This was called the Plum Pudding atomic model.Ajouté au bande de temps:
Date:
1 janv. 1897
Maintenaint
~ Il y a 128 ans