Say I put some metal balls in a rubber bag and I feed a wire into the bag to charge the metal balls, will the metal balls react at all? It seems to me like they should repel as they all get an equal charge but I could be wrong about any part of that.

If they do repel and if this would work for any number of metal balls I would like to follow up with this: Is there a way to charge the balls so they attract instead?

Hmmm, maybe I should have started by asking if metal balls can behave like ions.