29
/
en
AIzaSyAYiBZKx7MnpbEhh9jyipgxe19OcubqV5w
April 1, 2024
1823544
148591
2
Create
Public Timelines
Library
FAQ
For education
Cabinet
For educational institutions
For teachers
For students/pupils
jan 4, 1897 - J. J. Thomson J. J. Thomson discovered that the atom contained a positive and negative charge by experimenting with a Crookes tube
Added to timeline:
5 Oct 2018
0
0
254
atomic theory timeline
Date:
jan 4, 1897
Now
~ 127 years ago