30 avr. 1897 - JJ Thomson - December 18, 1856 - August 30, 1940
Description:
JJ Thomson was a British scientist who discovered through multiple experiments that atoms have tiny negatively charged particles that are also known as electrons. He made the plum pudding model of the atom.Ajouté au bande de temps:
Date:
30 avr. 1897
Maintenaint
~ Il y a 128 ans