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

  • Thread starter help908
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  • #1
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im sure its a simple question but i dont know thanks
 

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  • #2
chroot
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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
 
  • #3
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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.
 

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