J. J. Thomson - Wikipedia, the free encyclopedia
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Sir Joseph John “J. J.” Thomson , OM, FRS (18 December 1856 – 30 August 1940) was a British physicist and Nobel laureate, credited for the discovery of the electron and of isotopes, and the invention...
en.wikipedia.org/wiki/J._J._Thomson
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from these two experiments, "I can see no escape from the conclusion that [cathode rays] are charges of negative electricity carried by particles of matter." But, he continued, "What are these particles? are they atoms, or molecules, or matter in a still finer state of subdivision?"
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www.aip.org/history/electron/jj1897.htm
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If these rays are negatively electrified particles, then when they enter an enclosure they ought to carry into it a charge of negative electricity. ... As the cathode rays carry a charge of negative electricity, are deflected by an electrostatic force as if they were negatively electrified, and are acted on by a...
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web.lemoyne.edu/~giunta/THOMSON1897.HTML
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As he expected, the rays were deflected by the electric charge, proving beyond doubt that the rays were made up of charged particles carrying a negative charge. ... He decided upon the latter and came up with the idea that the cathode rays were made of particles that emanated from with the atoms themselves, a very bold...
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www.experiment-resources.com/cathode-ray.html
www.experiment-resources.com/cathode-ray.html
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The plate connected to the negative side of the electricity supply was called the cathode, that to the positive side the anode. As the pressure was lowered, a spark which fattened into a purplish glowing, writhing snake appeared going from the cathode to the anode. ... Were these cathode rays waves or particles? Hertz,
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www.phys.virginia.edu/classes/252/rays_and_particles.ht...
www.phys.virginia.edu/classes/252/rays_and_particles.html
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Passage of electricity through gas ... A positively charged plate attracts them, a negatively charged plate repels them, that is, cathode rays carry a negative charge. Measurements of the ... Cathode rays consist of fast moving, electrically charged particles (electrons), which simulate rays by their very large velocity;
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kr.cs.ait.ac.th/~radok/physics/k10.htm
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The next step in the proof that cathode rays are negatively charged particles was to show that when they are caught in a metal vessel they give up to it a charge of negative electricity.
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webserver.lemoyne.edu/faculty/giunta/EA/THOMSONann.HTML
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The next step in the proof that cathode rays are negatively charged particles was to show that when they are caught in a metal vessel they give up to it a charge of negative electricity. This was first done by Perrin.
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webserver.lemoyne.edu/faculty/giunta/jthomson.html
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7. Magnetic and electric fields deflect cathode rays. For example, if you place a magnet near the instrument in Fig. 515, the shadow of the cross will move. A positively charged plate attracts them, a negatively charged plate repels them, that is, cathode rays carry a negative charge.
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mpec.sc.mahidol.ac.th/radok/physmath/PHYSICS/k10.htm
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