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Thread: Protons and Electrons

  1. #1 Protons and Electrons 
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    I'm trying to understand why is that Electrons are considered negative and Protons considered positive? As much details as possible please.....


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  3. #2  
    Forum Radioactive Isotope MagiMaster's Avatar
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    Sorry, there's no detail here. It's just a convention/tradition/definition.


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  4. #3 Re: Protons and Electrons 
    Forum Freshman electricant's Avatar
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    Quote Originally Posted by blacknamed
    I'm trying to understand why is that Electrons are considered negative and Protons considered positive? As much details as possible please.....
    Because of the way they are deflected in a magnetic field.
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  5. #4 Re: Protons and Electrons 
    Moderator Moderator Janus's Avatar
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    Quote Originally Posted by blacknamed
    I'm trying to understand why is that Electrons are considered negative and Protons considered positive? As much details as possible please.....
    Quick answer:

    Ben Franklin quessed wrong in which direction electrical current flowed. He assumed that electricity was a flow from a surplus (+) to a deficiency (-), but he had no way off determining which terminal was which, so he pretty much flipped a coin.

    By the time it was discovered that the electron was the current carrier, the labeling convention had stuck. If Frankilin had decided to label the terminals the other way around, we would consider the electron to have a positive charge.
    "Men are apt to mistake the strength of their feelings for the strength of their argument.
    The heated mind resents the chill touch & relentless scrutiny of logic"-W.E. Gladstone


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  6. #5  
    Forum Senior Booms's Avatar
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    because of the way they behave, an electron and proton are pushing away from each other all the time, therefore one must be negative and the other positive, Franklin just got them the wrong way round
    It's not how many questions you ask, but the answers you get - Booms

    This is the Acadamy of Science! we don't need to 'prove' anything!
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  7. #6  
    Forum Ph.D.
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    ??? since when do opposite charges repell
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