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Word of the Day

cation

/ˈkatʌɪən/
noun
Chemistry
A positively charged ion, i.e. one that would be attracted to the cathode in electrolysis.

Origin
Mid 19th cent: from cata- ‘alongside’ or from cathode, + ion.

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Ions happen in solutions of many chemicals and a positively charged cation moves toward (and typically combines with) a metal cathode like a copper strip which is attached to a source of DC electricity. Do not expect this illustration to clarify much.

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