What was the contribution of J. J. Thomson in chemistry?

Joseph John Thomson, always known as"J. J.," was born in Manchester, England, on December 18, 1856. His fame derives primarily from his discovery of the electron in 1897. He studied physics and mathematics, first in Manchester, and in 1876 went to Trinity College, Cambridge University, and never left. read more

J.J. Thomson discovered the existence of the electron, a negatively-charged particle that’s 1/2000 the relative size of the proton. Before this, people thought that atoms were the smallest possible size of anything in existence, so this meant that there were even smaller particles that made up atoms. read more