You need to connect your doorbell to a battery. you should select wire that will

You need to connect your doorbell to a battery. You should select wire that will accept the flow of electrons. resist the flow of electrons. accept the flow of protons. resist the flow of protons.
Copper wire is a good conductor of electricity, this means that the electrons in copper valence band are not bound to the cooper nuclei, they can flow down the wire to a more favourable potential. Electron in are negatively charged, which mean they will move to a higher potential at the positive terminal of the battery

Not quite sure but I think that you need a wire that will accept the flow of electrons.