33
/
AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
November 1, 2025
1953977
159518
2
Public Timelines
FAQ Get premium

aug 15, 1904 - Plum Pudding Model: Created by J.J Thomson; Negative electrons represent raisins, embedded in the dough (a positively charged substrate); The atom is composed of electrons surrounded by a soup of positive charge to balance the electrons' negative charges

Added to timeline:

Date:

aug 15, 1904
Now
~ 121 years ago

Images: