What are the components of a voltaic cell?

• The anode is an electrode where oxidation occurs.

• The cathode is an electrode where reduction occurs.

• A salt bridge is a chamber of electrolytes necessary to complete the circuit in a voltaic cell.

• The oxidation and reduction reactions are separated into compartments called half-cells.

•The external circut is used to conduct the flow of electrons between the electrodes of the voltaic cell and usually includes a load.

• The load is the part of the circuit which utilizes the flow of electrons to perform some function.

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.