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Article: Chemistry and Energy
- Article from:
- Chemistry: Foundations and Applications
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CopyrightCOPYRIGHT 2004 The Gale Group, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Chemistry and Energy
Energy is central to our understanding of chemistry, for atoms adopt arrangements that correspond to the lowest possible energy and electrons in atoms adopt the lowest possible energy distribution. The adoption of lowest energy arrangements of atoms is responsible for the characteristic shapes of molecules. For instance, the tetrahedral shape of the methane molecule (CH
4
) corresponds to the lowest energy arrangement possible for one carbon atom and four hydrogen atoms. The characteristic bond lengths in a molecule are the distances between centers of atoms corresponding to the atoms' lowest energy arrangement. The distribution of electrons in molecules
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