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Binary Ionic Compounds – 1 metal with 1 nonmetal

Binary Ionic Compounds – 1 metal with 1 nonmetal. Making Their Formulas: Use the “ charge switch to subscripts ” trick since ionic compounds neutralize themselves Simplify the subscripts, if necessary. Naming BICs: Name of metal (Rom. # if TM) nonmetal stem ide

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Binary Ionic Compounds – 1 metal with 1 nonmetal

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  1. Binary Ionic Compounds – 1 metal with 1 nonmetal • Making Their Formulas: • Use the “charge switch to subscripts” trick since ionic compounds neutralize themselves • Simplify the subscripts, if necessary • Naming BICs: • Name of metal (Rom. # if TM) nonmetal stemide • Do NOT use a Roman numeral with a non-”trouble maker” Ternary Ionic Compounds – An ionic compound with at least one polyatomic ion • Making Their Formulas: • Same as BICs, but using parentheses when more than one polyatomic ion is needed • Naming TICs: • Name of metal (Rom. # if TM) Name of polyatomic ion • Only exception is when NH4+ is the + ion; then just say “ammonium” for the + ion

  2. Binary Molecular Compounds – 2 nonmetals that SHARE electrons in one or more arrangements; for example: NO, NO2, N2O, N2O5 , etc. • Making Their Formulas: • Just let the “numerical prefixes” tell you what the subscripts are! • Do NOT simplify the subscripts; charge is irrelevant here! • Naming BMCs: • Prefix name of 1st NM Prefix nonmetal stemide • Do NOT use “mono” if there is only one of the first NM! • You must know (memorize) each of the Greek prefixes: mono di tri tetra penta hexa hepta octa nona deca DO NOT USE THESE PREFIXES WITH IONIC COMPOUNDS!

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