Text: An anion is a negatively charged ion. An ion is, generally, an electrically charged atom or molecule. Negatively charged ions are known as anions (which are attracted to anodes) and positively charged ions are called cations (which are attracted to cathodes). (continued at Wikipedia) Negative Charge: having a surplus of electrons. Encyclopedia article (Electric charge) Electric charge, Q, is a measurement of the elementary charge held by an object. The unit of measurement is the coulomb, which represents 6.24 x 10^18 elementary charges. Q is a fundamental conserved property of matter. (continued at Wikipedia)

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