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    Why didn't the positively charged alpha particles get attracted to the electrons? How did they just go straight past them?
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    They are simultaneously repelled by the positiveness near the electrons.

    (Don't forget, when the plum pudding was suggested, they didn't know about nuclei and/or protons)
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    (Original post by Pigster)
    They are simultaneously repelled by the positiveness near the electrons.

    (Don't forget, when the plum pudding was suggested, they didn't know about nuclei and/or protons)
    What do you mean?
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    The atom is almost completely void space, and the alpha particles have plenty of empty space to pass through.

    The alpha particles may well be deflected to some extent but not enough to prevent them passing through.
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    (Original post by TutorsChemistry)
    The atom is almost completely void space, and the alpha particles have plenty of empty space to pass through.

    The alpha particles may well be deflected to some extent but not enough to prevent them passing through.
    That explains it completely. Thank you! But what if the olum pudding was right. It was saod that they expected the particles to pass straight through. Wouldn't it hit an electron?
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    (Original post by Don'tKnowAName)
    That explains it completely. Thank you! But what if the olum pudding was right. It was saod that they expected the particles to pass straight through. Wouldn't it hit an electron?
    I guess the experimenters, whose data Rutherford was reviewing, were experimenting to test the plum pudding model. Possibly they wanted to see whether the particles would pass through and whether that model should be modified to include significant empty space.

    Rutherford noticed that some alpha particles deflected straight back and concluded that there must be localised positive charge. This was where the model was developed to include a nucleus, rather than the +ve charge being throughout the 'sphere' of the whole atom.
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    (Original post by TutorsChemistry)
    I guess the experimenters, whose data Rutherford was reviewing, were experimenting to test the plum pudding model. Possibly they wanted to see whether the particles would pass through and whether that model should be modified to include significant empty space.

    Rutherford noticed that some alpha particles deflected straight back and concluded that there must be localised positive charge. This was where the model was developed to include a nucleus, rather than the +ve charge being throughout the 'sphere' of the whole atom.
    How do I rep you?
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    (Original post by Don'tKnowAName)
    How do I rep you?
    Aww thanks.
    Just click on the hand / plus image at the botton left of a post 😁

    Pleased to have helped.
 
 
 
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