1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

How do you know if a particle is an electron/proton?

  1. May 14, 2007 #1
    im sure its a simple question but i dont know thanks
     
  2. jcsd
  3. May 14, 2007 #2

    chroot

    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    If you know it's either a proton or an electron (but no other kind of particle), then all you need to do is measure its charge, or its mass.

    - Warren
     
  4. May 14, 2007 #3
    Hmm.. as a real life experiment?

    Magnetic fields and electric fields can do this very easily.

    If you apply an electric field, a proton will go in the direction of electric field lines, and an electron will go the reverse.

    Magnetic fields: right hand rule.

    Otherwise, chroot is right. Electrons have negative charge. Protons have positive. A proton weighs more than an electron.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: How do you know if a particle is an electron/proton?
Loading...