jan 1, 1897 - J. J. THOMSON
Description:
- Discovered the electron.- Proposed the existence of a (+) charged particle.
- Proposed that Atoms were made mostly out of (+) charged particles.
- Proposed that (-) charged electrons were found inside the atom (Raisin Bun Model)
Added to timeline:
Date:
jan 1, 1897
Now
~ 128 years ago