Prefixes and Suffixes…

-ate

      • 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:
            • BrO3 = bromate ion
            • SO42- = sulfate ion
          • Other Examples:
            • AsO43-, BO33-, BrO3, C2H3O2, ClO3, CO32-, Cr2O72-, CrO42-, IO3, NO3, PO43-, SeO42-, SO42-, TeO42-
          • Related Topics: NonAcids – Polyatomic Ions
          • Worksheet: Study Aid C
        • -an acid that is an ion and contains the polyatomic anion
          • Examples:
            • HSO4 = hydrogen sulfate ion
          • Other Examples:
            • H2AsO4, H2PO4, HAsO42-, HCO3, HPO42-, HSeO4, HSO4, HTeO4
          • Related Topics: Acids – Ions – Oxygen
          • Worksheet: Study Aid G
        • -ANY metal-containing or ammonium-containing compound that contains the polyatomic anion
          • Examples:
            • NaHSO4 = sodium hydrogen sulfate
          • Other Examples:
            • Na2HAsO4, Na2HPO4, NaH2AsO4, NaH2PO4, NaHCO3, NaHSeO4, NaHSO4, NaHTeO4, CaHAsO4, CaHPO4
          • Examples:
            • (NH4)2SO4 = ammonium sulfate
            • Na2SO4 = sodium sulfate
            • FeSO4 = iron(II) sulfate, or ferrous sulfate
            • Fe2(SO4)3 = iron(III) sulfate, or ferric sulfate
          • Other Examples:
            • (NH4)2SO4, (NH4)3PO4, Ag3PO4, AgClO3, Al(ClO3)3, Al2(SO4)3, AlPO4, Ba(ClO3)2, Ba3(PO4)2, BaSO4, Ca(ClO3)2, Ca3(PO4)2, CaSO4, Co(ClO3)2, Co(ClO3)3, Co2(SO4)3, Co3(PO4)2, CoPO4, CoSO4, Cr(ClO3)2, Cr(ClO3)3, Cr2(SO4)3, Cr3(PO4)2, CrPO4, CrSO4, Cs2SO4, Cs3PO4, CsClO3, Cu(ClO3)2, Cu2SO4, Cu3(PO4)2, Cu3PO4, CuClO3, CuSO4, Fe(ClO3)2, Fe(ClO3)3, Fe2(SO4)3, Fe3(PO4)2, FePO4, FeSO4, Hg(ClO3)2, Hg2(ClO3)2, Hg2SO4, Hg3(PO4)2, Hg6(PO4)2, HgSO4, K2SO4, K3PO4, KClO3, Li2SO4, Li3PO4, LiClO3, Mg(ClO3)2, Mg3(PO4)2, MgSO4, Mn(ClO3)2, Mn(ClO3)4, Mn(SO4)2, Mn3(PO4)2, Mn3(PO4)4, MnSO4, Na2SO4, Na3PO4, NaClO3, Ni(ClO3)2, Ni3(PO4)2, NiSO4, Pb(ClO3)2, Pb(ClO3)4, Pb(SO4)2, Pb3(PO4)2, Pb3(PO4)4, PbSO4, Rb2SO4, Rb3PO4, RbClO3, Sn(ClO3)2, Sn(ClO3)4, Sn(SO4)2, Sn3(PO4)2, Sn3(PO4)4, SnSO4, Sr(ClO3)2, Sr3(PO4)2, SrSO4, Zn(ClO3)2, Zn3(PO4)2, ZnSO4
          • Related Topics: NonAcids – Neutrals w/ Polyatomic Ions, Acids – Neutral w/ metal – Oxygen
          • Worksheet: Study Aid K

per<…>ate

    • This prefix/suffix combination is ONLY used for polyatomic anions that contain oxygen, when the polyatomic ion is contained in the following:
      • To distinguish -ate from per<…>ate: memorize….but know that per<…>ate polyatomic ions have one more oxygen than -ate polyatomic ions.
        • -the polyatomic anion alone
        • -an acid that is an ion and contains the polyatomic anion
        • -ANY metal-containing or ammonium-containing compound that contains the polyatomic anion
          • Examples:
            • NH4IO4 = ammonium periodate
            • NaIO4 = sodium periodate
            • Fe(IO4)2 = iron(II) periodate, or ferrous periodate
            • Fe(IO4)3 = iron(III) periodate, or ferric periodate
          • Other Examples:
            • NH4IO4, NH4ClO4,NH4BrO4,AgIO4, AgClO4, AgBrO4, Ba(IO4)2, Ba(BrO4)2, Ba(ClO4)2, Fe(IO4)3, Fe(BrO4)3, Fe(ClO4)3, Fe(IO4)2, Fe(BrO4)2, Fe(ClO4)2, Pb(IO4)2, Pb(BrO4)2, Pb(ClO4)2, Pb(IO4)4, Pb(BrO4)4, Pb(ClO4)4
          • Related Topics: NonAcids – Neutrals w/ Polyatomic Ions, Acids – Neutral w/ Metal – Oxygen
          • Worksheet: Study Aid K