Chemical Nomenclature for Chemistry 11

Chemistry 11 - Discussion Session 1 Fall 2010 Chemical Nomenclature for Chemistry 11 can be +1 ↓ –1 ⎯→ +2 ↓ charges indicated occur within ionic compounds +3 → Categories of elements: “Type I” metal “Type II” metal nonmetal Polyatomic ions: NH4+ ammonium OH– hydroxide NO3– nitrate SO42– sulfate PO43– phosphate CH3COO– acetate CO32– carbonate HSO4– hydrogen sulfate (H+ + SO42– ) HPO42– hydrogen phosphate (H+ + PO43– ) H2PO4– dihydrogen phosphate (2 H+ + PO43– ) HCO3– hydrogen carbonate (bicarbonate) (H+ + CO32–) –4 –3 –2 ↓ ↓ ↓ –1 ↓ Chemistry 11 - Discussion Session 1 Fall 2010 Binary ionic compounds (metal + nonmetal) • Metal cations (+ charge) and nonmetal anions (– charge) are present in the appropriate ratio such that the compound has no net charge Nomenclature for “Type I” compounds alkali metal (+1); alkaline earth metal (+2); Al (+3); or ammonium cation hydride (–1); halogen (–1); O, S, Se, Te (–2); N, P (–3); C, Si (–4) (anion name is designated with the “ide” suffix); or polyatomic anion examples: CaCl2 Al2O3 CaH2 (NH4)2CO3 Nomenclature for “Type II” compounds all other metals (Roman numeral in parentheses after name of metal specifies its charge) hydride (–1); halogen (–1); O, S, Se, Te (–2); N, P (–3); C, Si (–4) (anion name is designated with the “ide” suffix); or polyatomic anion examples: Fe2O3 FeS Acids (hydrogen + nonmetal/polyatomic ion) • Hydrogen cations (+1 charge) (called “protons”) and nonmetal or polyatomic anions (– charge) are present in the appropriate ratio such that the compound has no net charge HCl hydrochloric acid (and halogen analogues) HNO3 nitric acid H2SO4 sulfuric acid H3PO4 phosphoric acid CH3COOH acetic acid • Note that the polyatomic anions that are relevant to Chemistry 11 (listed on the previous page) are those that are derived from these acids by loss of one or more protons Binary covalent compounds (nonmetal + nonmetal) • Only nonmetal atoms are present “Type III” nomenclature (mono), di, tri, tetr(a), pent(a)… prefixes for each element designate number present (second element name is designated with the “ide” suffix) (mono is used only for the second element) (the “o” or “a” at the end of the prefix may be dropped with “oxide”) examples: CO P2 O5 Chemistry 11 - Discussion Session 1 Fall 2010 Flowchart for Chemical Nomenclature These flowcharts adapted from Figures 2.22 and 2.23 should help to clarify the strategy for naming compounds in Chemistry 11, particularly for compounds that contain polyatomic ions. (two elements only?) Use the strategy summarized below (“Other” compounds, only a few of which will be addressed in Chemistry 11 - names will be given as needed) Metal or NH4+ present? Is the compound an acid? nonmetal–nonmetal (covalent) compounds Acids: Change anion suffix to ‘-ic’ or ‘-ous’ and add ‘acid’ (sometimes prefix ‘-hydro’ is used as well) (or ammonium for NH4+) metal–nonmetal (ionic) compounds or polyatomic ion analogues Chemistry 11 - Discussion Session 1 Fall 2010 Chemistry 11 - Discussion Session 1 Fall 2010 Periodic Table of the Elements Chemistry 11 - Discussion Session 1 Fall 2010 Names and Symbols for the Elements Actinium Aluminum Americium Antimony Argon Arsenic Astatine Barium Berkelium Beryllium Bismuth Bohrium Boron Bromine Cadmium Calcium Californium Carbon Cerium Cesium Chlorine Chromium Cobalt Copper Curium Darmstadtium Dubnium Dysprosium Einsteinium Erbium Europium Fermium Fluorine Francium Gadolinium Gallium Germanium Ac Al Am Sb Ar As At Ba Bk Be Bi Bh B Br Cd Ca Cf C Ce Cs Cl Cr Co Cu Cm Ds Db Dy Es Er Eu Fm F Fr Gd Ga Ge Gold Hafnium Hassium Helium Holmium Hydrogen Indium Iodine Iridium Iron Krypton Lanthanum Lawrencium Lead Lithium Lutetium Magnesium Manganese Meitnerium Mendelevium Mercury Molybdenum Neodymium Neon Neptunium Nickel Niobium Nitrogen Nobelium Osmium Oxygen Palladium Phosphorus Platinum Plutonium Polonium Potassium Au Hf Hs He Ho H In I Ir Fe Kr La Lr Pb Li Lu Mg Mn Mt Md Hg Mo Nd Ne Np Ni Nb N No Os O Pd P Pt Pu Po K Praseodymium Promethium Protactinium Radium Radon Rhenium Rhodium Rubidium Ruthenium Rutherfordium Samarium Scandium Seaborgium Selenium Silicon Silver Sodium Strontium Sulfur Tantalum Technetium Tellurium Terbium Thallium Thorium Thulium Tin Titanium Tungsten Uranium Vanadium Xenon Ytterbium Yttrium Zinc Zirconium Pr Pm Pa Ra Rn Re Rh Rb Ru Rf Sm Sc Sg Se Si Ag Na Sr S Ta Tc Te Tb Tl Th Tm Sn Ti W U V Xe Yb Y Zn Zr