PPT-Electronic Structure and Lewis Dot Structures

PS21 Friday January 27 2017 Worst Taught Science Topics in Middle and High School ChemistryPhysical Science 1 Electronic structure Bohr model of the atom 2 Eight electron rule for chemical bonding. Criss. -Cross Method. 11/22/13 Chemistry. Drill. Draw electron dot structures for each element. . What charge do they typically have?. H. Ca. Ne. Zn (take a guess on the charge). U (take a guess on the charge). 21. Which of the trends below describe atomic radius, ionization energy, and electron affinity?. A. B. C. Increases. Increases. Increases. Increases. Increases. Increases. Ionization energy, Electron Affinity, Electronegativity. Molecules and . Polyatomic Ions. A molecule is represented by a Lewis structure in which the valence electrons of all the atoms are arranged to give octets. .. Learning Goal . Draw the Lewis structures for molecular compounds or polyatomic ions.. Malcolm, Xavier, Genna. Octet Rule. -Small molecules and polyatomic ions can use basic octet rule.. -Larger molecules, determine general arrangement of atoms, skeleton.. -Always includes central atom, atoms surrounding it bonded.. loops (coil). Bovine . carboxypeptidase. A. Figure 6-28. Tertiary . structures . may contain . common patterns, or motifs, of secondary structures (= . supersecondary. structures) . βαβ. β. -hairpins. Rule Breakers . . Some molecules disobey octet rule. C, N, O, and F are mostly rule keepers. 1) Odd Number of Valence Electrons. 2) Incomplete Octets. 3) Expanded Valence Shells . Molecular Exceptions to the Octet Rule. 7: . Chemical bonding. Lecture . 7 . Topics Brown, chapter 8. Basic . bonding background . information 8.1. Types of chemical bonds. Valence electrons & Lewis structures. The ‘Octet rule’ . Molecules and . Polyatomic Ions. A molecule is represented by a Lewis structure in which the valence electrons of all the atoms are arranged to give octets. .. Learning Goal . Draw the Lewis structures for molecular compounds or polyatomic ions.. loops (coil). Bovine . carboxypeptidase. A. Figure 6-28. Tertiary . structures . may contain . common patterns, or motifs, of secondary structures (= . supersecondary. structures) . βαβ. β. -hairpins. Bonding Theories. Explain how atoms bond together to form molecules. Explain why some combinations are stable and others are not. Table salt . NaCl. …. Not NaCl. 2. Water is H. 2. O …. Not H. 3. Covalent bonds . result from the . sharing . of electrons. between two atoms.. A covalent bond is a . two-electron bond . in which the bonding atoms share valence electrons.. A . molecule . is a discrete group of atoms held together by covalent bonds.. Chapter 2 Analysis of Algorithms Chapter Scope Efficiency goals The concept of algorithm analysis Big-Oh notation The concept of asymptotic complexity Comparing various growth functions Java Software Structures, 4th Edition, Lewis/Chase Oxygen, Water, Penicillin, . Carbon Dioxide, Rust and More. . or. Odds and ends of chemistry that should provide insight into chemistry. Intriguing ideas including the . iso. words (isotopes, isomers). Chem. 1. Introduction to organic structure & bonding. 1.1: Drawing organic structures. A. Formal charge. B. Common bonding patterns. C. Using ‘line structure’ (aka line-bond) convention. D. Constitutional (aka structural) isomers.