![]() ![]() After the electrons do their work powering the light bulb, they re-enter the cell at the cathode, where they combine with the active material, manganese dioxide, in a process called reduction. At that time, the anode material, zinc, gives up two electrons per atom in a process called oxidation, leaving unstable zinc ions behind. Is this normal?īatteries may seem simple, but the delivery of packaged power is a complicated electrochemical process.Įlectric current in the form of electrons begins to flow in the external circuit when the device-a light bulb for example-is turned on.
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