Bishop_Study_Guide_11 - 163 Chapter 11 Modern Atomic Theory...

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163 Chapter 11 Modern Atomic Theory Review Skills 11.1 The Mysterious Electron Standing Waves and Guitar Strings Electrons as Standing Waves Waveforms for Hydrogen Atoms Particle Interpretation of the Wave Character of the Electron Other Important Waveforms Overall Organization of Principal Energy Levels, Sublevels, and Orbitals 11.2 Multi-Electron Atoms Helium and Electron Spin The Second-Period Elements The Periodic Table and the Modern Model of the Atom Internet: Electron Configurations Abbreviated Electron Configurations Special Topic 11.1: Why Does Matter Exist, and Why Should We Care About Answering This Question? Internet: Abbreviated Electron Configurations Internet: Elements with Electron Configurations Other Than Predicted Chapter Glossary Internet: Glossary Quiz Chapter Objectives Review Questions Key Ideas Chapter Problems
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164 Study Guide for An Introduction to Chemistry Section Goals and Introductions Section 11.1 The Mysterious Electron Goals To explain why it is very difficult to describe the modern view of the electron. To give you some understanding of the nature of the electron by describing how it is like a guitar string. To explain what atomic orbitals are. To describe the atomic orbitals available to the electron of a hydrogen atom. To explain what energy levels and sublevels are. The electron is extremely tiny, and modern physics tells us that strange things happen in the realm of the very, very small. This makes it difficult for us to get a good understanding of the nature of the extremely tiny electron. For us, it’s easier to consider what the electron is like rather than what it is . This section begins by giving you a glimpse of the modern view of the electron by showing how it is like a guitar string and how atomic orbitals that are possible for an electron in a hydrogen atom are like the possible ways that a guitar string can vibrate. The most important component of this section is the introduction of the idea of atomic orbitals. Be sure you understand what the electron clouds that we call orbitals represent, both in terms of the effect they have on the space around the nucleus (which relates to their negative charge) and in terms of the probability of finding the electron in any position outside the nucleus. It will be useful for you to know the different shapes and sizes of the possible orbitals for the one electron in a hydrogen atom and to know how these orbitals can be arranged into energy levels and sublevels. Section 11.2 Multi-Electron Atoms Goals To show how the knowledge of the atomic orbitals of hydrogen can be applied to atoms of the other elements. To describe how electrons of atoms are arranged with respect to orbitals, sublevels, and
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This note was uploaded on 03/03/2012 for the course CHEM 100 taught by Professor Mark during the Fall '06 term at Monterey Peninsula College.

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Bishop_Study_Guide_11 - 163 Chapter 11 Modern Atomic Theory...

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