Contents:
Preliminary Syllabus Chemistry 11A General Chemistry Fall 2007 PLEASE READ THIS SYLLABUS CAREFULLY It contains a great deal of useful information that you will be expected to be familiar with Additional copies can be downloaded via Latte see below Instructor Professor Irving Epstein Office Edison Lecks 118a Telephone ext 62503 781 736 2503 Email epstein brandeis edu Office hours Tu 2 00 3 00 W 11 00 12 00 Meeting times Lectures Section 1 Mon Wed Thurs 9 10 10 00 AM Gerstenzang 123 Section 2 Mon Wed Thurs 10 10 11 00 AM Gerstenzang 123 Recitation Mon Tues Wed Thurs 4 00 5 00 PM Kosow 116 Exams and one makeup lecture Wed 6 40 8 00 PM Gerstenzang 123 Course objectives Obviously part of the goal of this course is for you to learn the subject matter atoms and molecules bonding equlibrium I hope however that you will get more than that out of this course In particular you should come away with at least some appreciation of how scientists think and you should be better at problem solving and critical thinking than you Continue to download »
Sponsored Links
Introduction to Chemistry Chemistry is the central science It s the foundation upon which all other sciences are based embraces all other sciences It s the study of properties and changes of matter and its interactions with energy Beauty of chemistry lies in its ability to simplify a seemingly terrifyingly complex universe where everything is constantly changing on one time scale or another into few fundamental principles that enable us to understand appreciate and change our world 1 1 Chapter Concept Map 1 Copyright 2007 by Concise Books Publishing LLC Visit us at www concisechem com to download other free chapters from The Concise Guide to Chemistry C H A P T E R 1 I N T R O D U C T I O N T O C H E M I S T R Y 1 2 Study of Chemistry Chemistry is the study of matter and changes that it undergoes It is the study of elements the compounds that they form and reactions that they undergo Chemistry enables us to comprehend how the world works so that we can appreciate its beauty modify aspects of it and create new materials Inquisitive Chemist 1 
Converging Technologies for Improving Human Performance NANOTECHNOLOGY BIOTECHNOLOGY INFORMATION TECHNOLOGY AND COGNITIVE SCIENCE NSF DOC sponsored report Edited by Mihail C Roco and William Sims Bainbridge National Science Foundation June 2002 Arlington Virginia Any opinions conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the United States Government Copyrights reserved by individual authors or their assignees except as noted herein Reproduced by permission The U S Government retains a nonexclusive and nontransferable license to all exclusive rights provided by copyright This work relates to NSF Grant CTS 0128860 awarded to the World Technology Evaluation Center WTEC Inc iii CONVERGING TECHNOLOGIES FOR IMPROVING HUMAN PERFORMANCE NANOTECHNOLOGY BIOTECHNOLOGY INFORMATION TECHNOLOGY AND 
Electron Configurations Atomic Properties and the Periodic Table Subshells within a shell are at the same energy level in hydrogen 2s 2p Orbital Energy Diagrams Subshells are split in a multielectron atom 2s 2p than in the hydrogen atom Orbital energies are lower in a multielectron atom Prentice Hall 2005 General Chemistry 4th edition Hill Petrucci McCreary Perry Chapter Eight Prentice Hall 2005 General Chemistry 4th edition Hill Petrucci McCreary Perry Chapter Eight 3 4 Electron Configurations An electron configuration describes the distribution of electrons among the various orbitals in the atom Electron configuration is represented in two ways The spdf notation uses numbers to designate a principal shell and letters s p d f to identify a subshell a superscript indicates the number of electrons in a designated subshell Prentice Hall 2005 General Chemistry 4th edition Hill Petrucci McCreary Perry Electron Configurations In an orbital box diagram a box represents each orbital within subshells and arrows represent electrons The arrows 
General Chemistry 4th edition, Hill, Petrucci, McCreary, Perry. Chapter Nine. 1. Chemical Bonds. Chapter Nine. Prentice Hall © 2005 Chapter Nine Chemical Bonds Chemical Bonds A Preview Forces called chemical bonds hold atoms together in molecules and keep ions in place in solid ionic compounds Chemical bonds are electrostatic forces they reflect a balance in the forces of attraction and repulsion between electrically charged particles Prentice Hall 2005 General Chemistry 4th edition Hill Petrucci McCreary Perry Chapter Nine Prentice Hall 2005 General Chemistry 4th edition Hill Petrucci McCreary Perry Chapter Nine Electrostatic Attractions and Repulsions Nuclei attract electron s 3 4 Energy of Interaction Nuclei repel other nuclei Electrons repel other electrons At 74 pm attractive forces are at a maximum energy is at a minimum Hydrogen nuclei far apart just a little attraction Both attractions and repulsions occur what s the net effect Answer it depends on the distance between nuclei Chapter Nine Closer than 74 pm repulsion 
