Naming_Rules - Naming Rules Naming rules are based upon...

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Naming Rules Naming rules are based upon whether the compound is ionic or molecular (covalent) in nature. I. Ionic: Metal + Nonmetal Subscripts are not mentioned in the names of ionic compounds Binary Ionic Compounds: Made up of only two elements. This indicates only mono atomic cations and anions are involved. Anions: element with “ide” ending Ex: Cl chloride ion O 2 oxide ion N 3 nitride ion Representative Metals: From “A” groups. Cation named same as the element Ex: Na + is Sodium ion Transition Metals (variable charges): From “B’ groups. Cation named as elemental name followed By charge/oxidation number in Roman Numerals in parentheses Fe +2 Iron (II) EX : NaCl Sodium Chloride AuCl 3 Gold (III) Chloride Ionic Compounds with polyatomic ions : More than two elements in the formula. Involves oxyanions. Name the metal cation first. Transition metals with Roman Numerals for charge. For oxy anions, the one with more oxygen with “ate” ending and similar one with fewer oxygen with “ite” ending Ex: Na 2 SO 4

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