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Last edited by WikidataBot
July 31, 2025 | History

Sir J. J. Thomson

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.

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British physicist (1856-1940)

Born 1856
Died 1940

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We need a photo of Sir J. J. Thomson

British physicist (1856-1940)

Born 1856
Died 1940

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