What are different types of metal in a voltaic cell that have different attractions for electrons?

In a voltaic cell, different metals are used as electrodes due to their varying tendencies to lose or gain electrons, characterized by their standard electrode potentials. Common metals include zinc, which has a strong tendency to oxidize and lose electrons, and copper, which readily gains electrons. Other examples include silver, which has a higher reduction potential than copper, and lead, which is often used in lead-acid batteries. The differences in these potentials create a flow of electrons from the anode (oxidation) to the cathode (reduction), generating electrical energy.