Author: Sir J. J. Thomson
Alternate names: Thomson, J. J. (Joseph John), Sir, 1856-1940; Sir J. J. Thomson; Sir Joseph John Thomson; Sir Joseph J. Thomson; J. J. Thomson; Joseph John Thomson; Joseph J. Thomson; Thomson, J. J Sir; Thomson, Joseph John Sir; Thomson, Joseph John Sir.
Title: Sir
Born: 1856
Died: 1940
Bio: Joseph John "J. J." Thomson discovered the electron, for which he won the 1906 Nobel Prize in Physics. He invented the cathode ray tube and the mass spectrometer. He found the first evidence of nuclear isotopes, distinguishing Neon 20 from Neon 22.