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

[help908]

im sure its a simple question but i don't know thanks

 

[chroot]

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

 

[Da-Force]

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.