Joseph John Thomson

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2026-07-13

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Sir Joseph John Thomson (18 December 1856 – 30 August 1940) was a British physicist. He received the 1906 Nobel Prize in Physics "in recognition of the great merits of his theoretical and experimental investigations on the conduction of electricity by gases." In 1897, he showed that cathode rays were composed of previously unknown negatively charged particles (now called electrons), which he calculated must have bodies much smaller than atoms and a very large charge-to-mass ratio. The electron w

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8/30/2025

JJ Thomson, the man who discovered the electron and mentored 8 Nobel winners

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6/27/2022

Subatomic science: JJ Thomson's discovery of the electron

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8/30/2020

Joseph John Thomson discovered electron

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7/24/2018

Aberdeen-born diplomat Sir John Thomson, aged 91

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3/24/2018

SIR J.J. THOMSON, 83, PHYSICIST, IS DEAD; His Research on Nature of the Atom Led to Electron Theory --Stricken in England WINNER OF NOBEL PRIZE His Son, Paget, Took Award in 1937--Served Cambridge Continuously Since 1876 (Published 1940)

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4/30/2012

April 30, 1897: J.J. Thomson Announces the Electron ... Sort Of

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10/17/2006

J. J. Thomson: Winner of the Nobel Prize for Physics 1906 - Thomas - 2006 - Angewandte Chemie International Edition

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