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Help? Electrons?

  1. May 7, 2005 #1
    Could anyone on here tell me how the electron was first weighed. Like how did they find the mass of the electron? Please I need to know!!!
     
  2. jcsd
  3. May 7, 2005 #2

    ZapperZ

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    Try looking for the Millikan Oil Drop experiment.

    Zz.
     
  4. May 7, 2005 #3
    okay..but will that help me.. i know he foudn out the charge with that...but the mass?
     
  5. May 7, 2005 #4

    dextercioby

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    No,no,he found the mass.The mass/charge ratio had been found by J.J.Thomson in 1897...:wink:

    Daniel.
     
  6. May 7, 2005 #5

    dextercioby

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    And one moe thing,i know you're just trying to pass chemistry,but please do not double post/address the same question in different threads...

    Unless you like seing double...:tongue2:

    Daniel.
     
  7. May 8, 2005 #6

    Meir Achuz

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    Thomson found e/m.
    Millikan found e.
    From the two measurements, m was deduced by division.
     
  8. May 8, 2005 #7
    so they never really weighed it...
     
  9. May 8, 2005 #8

    dextercioby

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    Yes,they did,it's called MASS SPECTROMETER...:wink:

    Daniel.
     
  10. May 8, 2005 #9
    omg im so confused with this chem stuff...my teach told me to find out how they weighed the electron and proton for Xtra credit and nothing is comming up on google
     
  11. May 8, 2005 #10

    dextercioby

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  12. May 8, 2005 #11
    yeah we just learned about the oil drop experiment..that's only bout the charge isn't it
     
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