Inorganic Nomenclature Oxidation number of cations 1+: H (hydrogen), Li (lithium), Na (sodium), K (potassium), Rb (rubidium), Cs (cesium), Fr (francium), Ag (silver), NH4 (ammonium), PH4 (phosphonium). 2+: Be (beryllium), Mg (magnesium), Ca (calcium), Sr (strontium), Ba (barium), Ra (radium), Zn (zinc), Cd (cadmium). 3+: Al (aluminum), Ga (gallium), Bi (bismuth). 2+ 1+, 2+: Cu (copper), Hg (mercury), Hg2 (mercury ion I). 1+, 3+: Au (gold). 2+, 3+: Cr (chromium), Co (cobalt), Fe (iron), Ni (nickel). 2+, 4+: Sn (tin), Pb (lead), Pt (platinum), Pd (palladium). 2+, 3+,4+, 6+, 7+: Mn (manganese). 1+, 3+, 5+: As (arsenic), Sb (antimony). Formation of anions 2- 2- O : Oxide MnO4 : Manganate 2- - O2 : Peroxide MnO4 : Permanganate OH- : Hydroxide F- : Fluoride, Cl- : Chloride Br- : Bromide, I- : Iodide - 2- Cl, Br, I: ClO : Hypochlorite CrO4 : Chromate - 2- ClO2 : Chlorite Cr2O7 : Dichromate - ClO3 : Chlorate - ClO4 : Perchlorate - 3- NO2 : Nitrite BO3 : Ortoborate - NO3 : Nitrate 2- 4- SO3 : Sulfite SiO4 : Silicate 2- 2- SO4 : Sulfate SiO3 : Metasilicate - 4- HSO3 : Hydrogen sulfite Si : Silicide - HSO4 : Hydrogen sulfate S2- : Sulfide CN- : Cyanide 2- 3- S2 : Disulfide N : Nitride - - HS : Hydrogen sulfide N3 : Azide 2- S2O3 : Thiosulfate 2- 3- S2O2 : Thiosulfite AsO4 : Arsenate 2- 3- S2O7 : Disulfate AsO3 : Arsenite 3- 2- PO4 : Phosphate SeO4 : Selenate - 2- PO3 : Metaphosphate SeO3 : Selenite 4- P2O7 : Diphosphate 2- 2- HPO4 : Hydrogen phosphate CO3 : Carbonate - - H2PO4 : Dihydrogen phosphate HCO3 : Hydrogen carbonate C4- : Carbide Notes: From the anion and without changing charge, we do peroxo like: Formula +O, we do thio like: Formula +S, -O. Oxygen containing acids (next page), we do diacid from the acid formula like: x2 - H2O. Compounds formed with cations and anions Salts Binary acids Cation + anion H+ + halogen (F, Cl, Br, I) CaSO4 : Calcium sulfate HBr : Hydrogen bromide FeSO4 : Iron (II) sulfate HCl : Hydrogen chloride HCl(aq) : Hydrochloric acid Hydrides Non-metal, Non-metal - Cation + H CCl4 : Carbon tetrachloride NaH : Sodium hydride SCl3 : Sulfur trichloride CaH2 : Calcium hydride AsF5 : Arsenic pentafluoride Oxides Oxygen containing acids Cation + O2- (oxide) H+ + anion with oxygen: 2- Cation + O2 (peroxide) Anion ended -ite → acid ended -ous Cation + OH- (hydroxide) Anion ended -ate → acid ended -ic Metals from non-metals differently: H2S2O7 : Disulfuric acid CuO : Copper (II) oxide (metal) H2SO3 : Sulfurous acid CO2 : Carbon dioxide (non-metal) Binary salts With monoatomic anions: Na2S : Sodium sulfide AgI : Silver iodide CoCl2 : Cobalt (II) chloride Examples: CaO : Calcium oxide CuBr2 : Copper (II) bromide CoCl3 : Cobalt (III) chloride SnF2 : Tin (II) fluoride CO : Carbon monoxide CoO : Cobalt (II) oxide NO : Nitrogen monoxide (NH4)2S : Ammonium sulfide N2O : Dinitrogen monoxide Na2SO3 : Sodium sulfite PCl3 : Phosphorus trichloride CuNO2 : Copper (I) nitrite P2O5 : Diphosphorus pentoxide Zn3(PO4)2 : Zinc phosphate FeO : Iron (II) oxide SiC: Silicon carbide H2S : Hydrogen sulfide Ag2CO3 : Silver carbonate HBr : Hydrogen bromide Li3PO4 : Lithium phosphate H2S(aq) : Hydrosulfuric acid Ni(OH)2 : Nickel (II) hydroxide HClO4 : Perchloric acid Mg(HCO3)2 : Magnesium hydrogen carbonate HNO3 : Nitric acid Al(HSO4)3 : Aluminum hydrogen sulfate H2SO4 : Sulfuric acid K2CrO4 : Potassium chromate HClO3 : Chloric acid SF6 : Sulfur hexafluoride HClO2 : Chlorous acid Cl2O : Dichlorine monoxide HClO : Hypochlorous acid N2O3 : Dinitrogen trioxide MgH2 : Magnesium hydride Cr(OH)3 : Chromium (III) hydroxide NaF : Sodium fluoride HI(aq) : Hydroiodic acid SrI2 : Strontium iodide HBr(aq) : Hydrobromic acid Ba3N2 : Barium nitride H2CO3 : Carbonic acid MgS : Magnesium sulfide Br2O : Dibromine monoxide.