Rank #17
The Discovery of the Electron (1897)
This is a historical account of the groundbreaking discovery of the electron in 1897 by British physicist J.J. Thomson. The discovery of the electron marked a major milestone in the development of modern physics, as it provided the first evidence of the existence of subatomic particles. This discovery was made possible
From Wikipedia
The electron is a subatomic particle whose electric charge is negative one elementary charge. It is an elementary particle that comprises the ordinary matter that makes up the universe, along with up and down quarks.