General Chemistry 1
General Chemistry 1 CHEM 121
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This 1 page Class Notes was uploaded by Valentine Mills Sr. on Monday October 12, 2015. The Class Notes belongs to CHEM 121 at Ferris State University taught by Gary Hiel in Fall. Since its upload, it has received 9 views. For similar materials see /class/221632/chem-121-ferris-state-university in Chemistry at Ferris State University.
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Date Created: 10/12/15
Chapter 9 Recommended Problems BrownBox problems and suggested further problems in the back Selection of further problems in back of Chapter as good options Brown box problems would be a very good start including the further suggeseted problems VERY IMPORTANT Lewis structures from Lab Exercises note that the full answers have been provided along with geometries via Email attachment sent on or about 7 AprilCheck FerrisConnect Also try 35 39 41 47 55 59 61 65 71 75 77 83 107 120 91 Ionic Bonds Neutral elements ionizing through redox to become ions following the octet rule Lewis dot structures for neutral and ionized elements also proper e configuration notation Effect of charge and distance on Lattice energy quotUquot Consider E constant Q1 x QZr Compare qualitatively stabilities of ion pairs of crystals with differing charge and radius r distance between Energetics Born Haber Cycle fig 93 Going to gas phase atom from elements in their standard form cationanion formation coming together of opposite ions to make crystal in 3D Q Which step RELEASES the most energy is 39 U 92 Electron con g of ions a Octet rule for Main Group Cations and Anions is most important of these Groups IAIVA metals lose 14 e Groups VAVIIA elements gain 31 e Tendency of transition metals to lose ns electrons first In addition to octet rule predictor as expected TI3Pb4 Sn4 Bi5 as ox states Group 2 charge is another pattern as the two s electrons only are lost first for these Result TI1Pb2 Sn2 Bi3 d Transition metals s electrons are often lost first 3 7 93 Ionic Radii Ionic radii Increasing charge effect on radius and why Increasing charge effect on radius and why Leftright and up down trends in radius note that anions will behave differently from cations and increasing charge or has an effect as well What is an isoelectronic series 94 Covalent Bonds Potential Energy Diagram Fig 911 Know the important parts of this diagram Discussed extensively in class What allows covalent bonds to be stable Coordinate covalent bonds How different from regular covalent bonds Octet Rule see also above previous sections and how to make multiple bonds
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