The discussion clarifies that in a voltaic cell, the cathode is considered the positive electrode due to the flow of electrons from the anode, where oxidation occurs, to the cathode, where reduction takes place. The cathode does not become positively charged in the traditional sense; rather, it serves as an electron source for the reduction reaction. The concept of electrical neutrality is maintained through the movement of ions in the electrolyte and the external circuit, which includes a salt bridge that facilitates ion flow to complete the circuit.
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Drakkith said:I'm sorry but this is just wrong.
They don't. Electrons have a negative charge, protons have a positive charge, and neutrons are electrically neutral. You're replying to a bad answer.
The electrons that flow into the cathode are used in the chemical reaction between the cathode and the electrolyte. They are indeed 'lost' from the cathode in this reaction.
proton007007 said:The cathode is not charged