Nomenclature II Periodic Table “Superheroes” Fe Mn Multivalent Binary and Tertiary Ionic Compounds Sn Pb Co Hg & Cu Au Covalent Compounds Ti Pd Pt Cr The Multivalent Metals Why Roman Numerals? Roman Numerals One – I Two – II Three – III Four – IV Five – V Six – VI When using a MULTIvalent elements, the charge of that element in a compound MUST be denoted by placing a Roman numeral after the name of the element. FeCl2 iron(II) chloride FeCl3 iron(III) chloride Naming Multivalent Ionic Compounds PRACTICE Creating Formulas From Names PRACTICE Iron(II) phosphate Fe3(PO4)2 Copper(I) carbonate Cu2CO3 Copper(I) oxide Lead(IV) oxide PbO2 Ti(NO3)4 Titanium(IV) nitrate Tin(IV) nitrate Sn(NO3)4 Cr2(SO4)3 Chromium(III) sulfate Copper(II) chloride CuCl2 Cobalt(III) phosphate Tin(II) carbonate SnCO3 MnO2 Manganese(IV) oxide Fe2S3 Iron(III) sulfide Cu2O CoPO4 1 Classical Naming “Old School” Naming Older method was based on the few metals that were known in the past. Name derived from the old (Greek or Latin) name of the elements. Element New Name Old Name Possible Charges Fe Iron Ferrum 2+, 3+ Cu Copper Cuprum 1+, 2+ Sn Tin Stannum 2+, 4+ Au Gold Aurum 1+, 3+ Pb Lead Plumbum 2+, 4+ Sb Antimony Stibbum 3+, 5+ Classical Naming Classical Naming Fe2+ Ferrous Fe3+ Ferric Cu+ Cuprous Cu2+ Cupric Sn2+ Stannous Sn4+ Stannic Au+ Aurous Au3+ Auric Pb2+ Plumbous Pb4+ Plumbic Sb3+ Stibbous Sb5+ stibbic • Metals only could have two possible valences • “ic” and “ous” system distinguished between the two metals • “ic” ending indicates higher valence or charge • “ous” ending indicated lower valence or charge Classical PRACTICE SnO2 Stannic oxide Ferrous chloride FeCl2 CuBr2 Cupric bromide Stannous nitrate Sn(NO3)2 Pb(ClO)4 Plumbic chlorate Cupric nitride Cu3N2 Covalent (Molecular) Compounds This approach is used when naming compounds that are made up of non-metal elements only. Naming covalent compounds requires Greek prefixes. 1 2 3 4 5 6 7 8 9 10 mono di tri tetra penta hexa hepta octa nona deca 2 Covalent Compound Naming PRACTICE Covalent Compound Formula PRACTICE N2O Dinitrogen monoxide Nitrogen triiodide NI3 IF7 Iodine heptafluoride Xenon diflouride XeF2 NO2 Nitrogen dioxide Dinitrogen pentoxide N2O5 BN Boron nitride Oxygen difluoride OF2 N2O3 Chlorine dioxide Dinitrogen trioxide ClO2 Dinitrogen pentasulfide N2S5 SF6 Sulfur hexafluoride Textbook Reference pp. 89 – 97 Assigned Questions p. 93 # 6, 7, 8, 9, 10, 11 p. 96 # 15, 16, 17, 18, 19, 20 p. 98 # 22, 23 p. 101 # 24, 25, 26, 27 Centrum Multi-Vitamin Ingredients: Calcium Phosphate, Magnesium Oxide, Calcium Carbonate, Potassium Chloride, Ascorbic Acid (Vitamin C), Ferrous Fumarate, Microcrystalline Cellulose, DL-alpha Tocopheryl Acetate (Vitamin E), Gelatin, Crospovidone, Niacinamide, Zinc Oxide, Hydroxypropyl Methylcellulose, Calcium Pantothenate, Vitamin A Acetate, Vitamin D, Titanium Dioxide, Manganese(III) Sulfate, Magnesium Stearate, Stearic Acid, Silicon Dioxide, Pyridoxine Hydrochloride (Vitamin B6), Cupric Oxide, Riboflavin (Vitamin B2), Triethyl Citrate, Thiamin Mononitrate (Vitamin B1), Polysorbate 80, Beta Carotene, FD&C Yellow #6, Folic Acid, Sodium Selenate, Potassium Iodide, Chromium(III) Chloride, Sodium Metasilicate, Sodium Molybdate, Borates, Phytonadione (Vitamin K), Biotin, Sodium Metavanadate, Stannous Chloride, Nickelous Sulfate, Cyanocobalamin (Vitamin B12). 3
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