Joseph John “J. J.” Thomson

In 1897 Thomson discovered the electron and then went on to propose a model for the structure of the atom. His work also led to the invention of the mass spectrograph.

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Sir Joseph John J. J. Thomson

J.J. Thomson – Biographical

Sir Joseph John Thomson /N(1856-1940). English Physicist. Thomson

Joseph John thomson

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Joseph John Thompson The electron. - ppt download

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Joseph John Thomson - Visuotinė lietuvių enciklopedija