1.Discovered atoms have negative particles (electrons) using a cathode ray tube. 2.Discovered electron’s charge to mass ratio: 1.76 x 108 C/g (20 déc. 1895 – 24 nov 1902)
Ajouté au bande de temps:
Date:
20 déc. 1895
24 nov 1902
~ 6 years and 11 months
