41
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
May 31, 2026
146414
13036
2
Public Timelines
FAQ

jul 16, 1856 - He discovered electrons and Thomson is also credited with finding the first evidence for isotopes of a stable ( non-radioactive) element in 1913

Description:

J . J . Thomson

Added to timeline:

Date:

jul 16, 1856
Now
~ 170 years ago