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Thread: need help with some atomic theory - J.J Thomson

  1. #1 need help with some atomic theory - J.J Thomson 
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    Hi...

    Hi i'm currently studding J. J. Thomson and trying to understand
    how he discovered the electron.
    If any one could help explain his model that would be much appreciated.

    Thanx


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  3. #2  
    Forum Sophomore basim's Avatar
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    he used a cathode ray, electric field and magnetic field to find it. he found out the charge mass ratio of the cathode ray. he found that it was thousands times less than that of proton.
    and the cathode rays are electrons.
    visit http://en.wikipedia.org/wiki/J.J._Thomson


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  4. #3  
    Forum Senior anand_kapadia's Avatar
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    He created 0.01 mm pressure in a tube and passed electric current through it . A light was seen emnating. It was found that it deflected toward positicve electrode and was having kinetic energy.
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