Ch 6.1 Bonding - Chapter 6 Bonding: General Concepts...

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Chapter 5 1 Chapter 6 Bonding: General Concepts Georgia Tech Chem 1310J Fall 2009
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Chapter 5 2 [The chemical bond] First, it is related to the disposition of two electrons (remember, no one has ever seen an electron!): next, these electrons have their spins pointing in opposite directions (remember, no one can ever measure the spin of a particular electron!): then, the spatial distribution of these electrons is described analytically with some degree of precision (remember, there is no way of distinguishing experimentally the density distribution of one electron from another!): concepts like hybridization, covalent and ionic structures, resonance, all appear, not one of which corresponds to anything that is directly measurable. These concepts make a chemical bond seem so real, so life-like, that I can almost see it. Then I wake with a shock to the realization that a chemical bond does not exist; it is a figment of the imagination that we have invented, and no more real than the square root of - 1. I will not say that the known is explained in terms of the unknown, for that is to misconstrue the sense of intellectual adventure. There is no explanation: there is form: there is structure: there is symmetry: there is growth: and there is therefore change and life. Charles A. Coulson, 1955 1910-1974 University of Oxford Theoretical Chemist
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Chapter 5 3 Preliminaries Our knowledge of atomic structure, electron configurations and
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This note was uploaded on 03/08/2010 for the course CHEMISTRY 1310 taught by Professor Williams during the Spring '10 term at Georgia Institute of Technology.

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Ch 6.1 Bonding - Chapter 6 Bonding: General Concepts...

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