Anion

__ Anion __

Anions are ions with a net negative charge. Anions are attracted to the anode in electrolysis. Ionic species having a negative charge. negatively charged ion, as oneattractedtotheanodein electrolysis. __ Examples: __ (CL-)

Common anions include: hydroxide anion: OH -, oxide anion: O 2- , and sulfate anion: SO 42-, nitride, nitrate, sulphite, phosphate and oxide.  Except for hydroxide and cyanide, all anions that end in –ide are monatomic. Group 7 atoms called halides, which include such elements as fluorine, chlorine, bromine and iodine, form anions with their charge of negative one. Elements such as oxygen and sulfur carry a charge of negative two, while nitrogen and phosphorus carry a negative three charge. All of these combine with an atom to form an anion. a negatively charged ion, as one attracted to the anode in electrolysis.

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