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Unit 2: Study Guide Study Notes, Homework, Quizzes Read Ebook sections below! 2.1 and 2.2 Atoms and the Atomic Theory and Components of the Atom [EBOOK Sections 4.1 to 4.2] Definitions of atoms, molecules, ions Lavoisier and Law of Conservation of Mass Proust and Law of Constant Composition Dalton and Atomic Theory and Law of Multiple Proportions Thomson—cathode ray tubes, electrons and plum pudding model Millikan and Oil Drop Experiment Rutherford—Gold Foil experiment and nucleus Current View of Particles in the Nucleus: [EBOOK Section 4.3] Mass, location and symbol for proton, neutron, electron Writing atomic symbols for isotopes Calculating atomic numbers, mass numbers & numbers of protons, neutrons, electrons for neutral atoms and ions Definition of atomic mass unit and atomic mass Calculations of atomic masses from isotopes (free-response problem) 2.3 The Periodic Table: Elements Organized [EBOOK Sections 12.1 to 12.2 & Section 13] A. Know location and description of: groups or families periods or series metals, metalloids, nonmetals and their properties main group elements transition metals lanthanoids and actinoids B. Dmitri Mendeleev—first periodic table C. Henry Moseley—modern periodic table Dr. Mihelcic Honors Chemistry 2013-14 1 2.4 Molecules and Molecular Compounds [EBOOK Sections 15.1 to 15.2, Sections 14.1 to 14.4] Definitions of molecule; empirical, molecular and structural formulas Definitions of cations, anions, polyatomic ions Electrostatic attraction in ionic compounds Formulas/Names of Compounds (fill-in section) Binary Ionic Compounds—Know your –ide endings! Common polyatomic cations (See handout): Must memorize! ALL on handout EXCEPT PEROXIDE!! Metals with multiple oxidation numbers—Must know when to use the Stock System (Roman numerals) Molecular (Covalent) Compounds—Know your Greek prefixes 1-8! FORMULA WRITING/NAMING WILL BE MIXED IONIC/COVALENT Dr. Mihelcic Honors Chemistry 2013-14 2