&KHP 1RPHQFODWXUH )DOO _________________________________________________________________________A. Binary Compounds - 2 nonmetallic elements 1. Name first element by element name 2. Name second element as a separate word with root and "ide" ending 3. Use prefixes di, tri, tetra, penta, etc. 4. There are exceptions Examples: CCl4 carbon tetrachloride P2O5 diphosphorus pentoxide NO nitrogen oxide _________________________________________________________________________ B. Binary Salts - metal and nonmetal 1. Name metal by element name 2. Indicate oxidation number (charge) with a Roman numeral in parentheses if metal has more than one oxidation state- most p, d and f-block metals 3. Name the second element as a separate word with root and "ide" ending 4. There are exceptions Examples: MgCl2 magnesium chloride MnI3 manganese(III) iodide AlBr3 aluminum bromide Ca3N2 calcium nitride FeO iron(II) oxide _________________________________________________________________________C. Acids i) Oxyacids 1. Learn these five acids as exemplary for the acids of element below them in the Periodic Chart (exception: nitric acid) HClO3 chloric acid H2SO4 sulfuric acid H3PO4 phosphoric acid HNO3 nitric acid H2CO3 carbonic acid 2. Learn the system of prefixes and suffixes as in the following HBrO4 perbromic acid (one more oxygen than bromic acid) HBrO3 bromic acid HBrO2 bromous acid (one less oxygen than bromic acid) HBrO hypobromous acid (two less oxygens than bromic acid) Examples: HNO2 nitrous acid H2SO3 sulfurous acid HClO4 perchloric acid ii) Halogen acids (only in aqueous solution) use the prefix hydro- and the suffic -ic Examples: HCl (aq) hydrochloric acid HBr (aq) hydrobromic acid HBr hydrogen bromide (see part A) _________________________________________________________________________ D. Salts of oxyacids 1. Name cation first 2. Name the oxyanion as a separate word To name the oxyanion: Start with the complementary acid Change the "ic" suffix to "ate" and the "ous" to "ite" Examples: NaClO2 sodium chlorite Mn(BrO)2 maganese (II) hypobromite Fe2(SO4)3 iron(III) sulfate.