Science Fair Project Encyclopedia
The electrode of an electrochemical cell at which reduction occurs is referred to as the cathode (from the Greek word κάθοδος = 'going down'). In an electrolytic cell the cathode is negatively charged and in a galvanic cell the cathode is positively charged. The oppositely charged electrode in that same cell is referred to as the anode.
The contents of this article is licensed from www.wikipedia.org under the GNU Free Documentation License. Click here to see the transparent copy and copyright details