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Unformatted text preview: which it is derived (e.g., Na + = "sodium", Ca 2+ = "calcium", Al 3+ = "aluminum"). Rule 3. The anion is named by adding the suffix -ide to the root of the (nonmetal) element name (e.g., iod ine = I, " iod ide" = I-; sulf ur = S, " sulf ide" = S 2-). Note: Greek prefixes are not used to indicate the number of atoms of each element in the formula unit for the compound (e.g., Na 2 O is named "sodium oxide" not "disodium oxide", or "disodium monoxide")....
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- Fall '02