Define Electrodes, Anode, Cathode, Cations & Anions.
Define Electrodes, Anode, Cathode, Cations & Anions. Electrodes: These are rods (plates) made up of graphite or metals through which current enters or leave. Anode: The positive electrode is called Anode. Cathode: The negitive electrode is called Cathode. Moving charges: There are 2 charges, positive & negative Negative charge moves towards positive terminal (electrode) Metals donate electrons forming positive ions For example: Na + , K + , Ca 2+ , Al 3+ Exceptional case H + & NH + 4 Non-metals accept electrons forming negative ions For example: Cl - , Br - , I - , O ...