Prefixes and Suffixes…

-ite

  • Ending (suffix) is ONLY for polyatomic anions that contain oxygen, when the polyatomic ion is contained in the following….
    • To distinguish -ite from -ate: memorize….but know that -ate polyatomic ions have one more oxygen than -ite polyatomic ions-the polyatomic anion alone
      • Examples:
        • BrO2 = bromite ion

           

        • SO32- = sulfite ion
      • Other Examples:
        • BrO2, ClO2, IO2, NO2, SeO32-, SO32-, TeO32-
      • Related Topics: NonAcids – Polyatomic Ions
      • Worksheet: Study Aid C
    • -an acid that is an ion and contains the polyatomic anion
      • Examples: HSO3 = hydrogen sulfite ion
      • Other Examples: HSeO3, HSO3, HTeO3
      • Worksheet: Study Aid G
    • ANY metal-containing or ammonium-containing compound that contains the polyatomic anion
      • Examples:  NaHSO= sodium hydrogen sulfite
      • Other Examples: NaHSeO3, NaHSO3, NaHTeO3
      •  
      • Examples: 
        • (NH4)2SO3 = ammonium sulfite
        • Na2SO3 = sodium sulfite
        • FeSO3 = iron(II) sulfite, or ferrous sulfite
        • Fe2(SO3)3 = iron(III) sulfite, or ferric sulfite
      • Other Examples:
        • (NH4)2SO3, (NH4)2SeO3,(NH4)2TeO3,Ag2SO3, Ag2SeO3, Ag2TeO3, BaSO3, BaSeO3, BaTeO3, Fe2(SO3)3, Fe2(SeO3)3, Fe2(TeO3)3, FeSO3, FeSeO3, FeTeO3, PbSO3, PbSeO3, PbTeO3, Pb(SO3)2, Pb(SeO3)2, Pb(TeO3)2
Related Topics: NonAcids – Neutrals w/ polyatomic ions, Acids – Neutral w/ metal – Oxygen, Acids – Ions – Oxygen
Worksheet: Study Aid I

hypo<…>ite

  • This prefix/suffix combination is ONLY used for polyatomic anions that contain oxygen, when the polyatomic ion is contained in the following….
    • To distinguish -ite from hypo<…>ite: memorize….but know that hypo<…>ite polyatomic ions have one fewer oxygen than -ite polyatomic ions.
      • -the polyatomic anion alone
      • -an acid that is an ion and contains the polyatomic anion
        • Examples: I don’t know of any examples
      • -ANY metal-containing or ammonium-containing compound that contains the polyatomic anion
        • Examples:
          • NH4IO = ammonium hypoiodite
          • NaIO = sodium hypoiodite
          • Fe(IO)2 = iron(II) hypoiodite, or ferrous hypoiodite
          • Fe(IO)3 = iron(III) hypoiodite, or ferric hypoiodite
        • Other Examples:
          • NH4IO, NH4ClO,NH4BrO,NH4OF,AgIO, AgClO, AgBrO, AgOF, Ba(IO)2, Ba(BrO)2, Ba(ClO)2, Ba(OF)2, Fe(IO)3, Fe(BrO)3, Fe(ClO)3, Fe(OF)3, Fe(IO)2, Fe(BrO)2, Fe(ClO)2, Fe(OF)2, Pb(IO)2, Pb(BrO)2, Pb(ClO)2, Pb(OF)2, Pb(IO)4, Pb(BrO)4, Pb(ClO)4, Pb(OF)4
Related Topics: NonAcids – Neutrals w/ polyatomic ions, Acids – Ions – Oxygen