33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 30, 2025
1932350
159574
2
Public Timelines
FAQ

jun 17, 1832 - Sir William Crooke demonstrated that atoms had negative charges.

Description:

He utilized cathode ray tubes to discover negative charges, and, by association, the electron.

Added to timeline:

Date:

jun 17, 1832
Now
~ 193 years ago