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Bond angles
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The angles made by the lines joining the nuclei of the atoms in a molecule
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VSEPR model
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A model that accounts for the geometric arrangements of shared and unshared electron pairs around a central atom in terms of the repulsions between electron pairs
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Electron domain
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In the VSEPR model, a region about a central atom in which an electron pair is concentrated.
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Nonbonding pair
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In a Lewis structure a pair of electrons assigned completely to one atom; also called a lone pair
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Bonding pair
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In a Lewis structure a pair of electrons that is shared by two atoms
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Electron-domain geometry
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The 3-D arrangement of the electron domains around an atom according to the VSEPR model
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Molecular geometry
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The arrangement in space of the atoms of a molecule
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Bond dipole
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The dipole moment that is due to unequal electron sharing between two atoms in a covalent bond.
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Valence-bond theory
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A model of chemical bonding in which an electron pair bond is formed between two atoms by the overlap of orbitals on the two atoms
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Overlap
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The extent to which atomic orbitals on different atoms share the same region of space
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Hybrid orbitals
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An orbital that results from the mixing of different kinds of atomic orbitals on the same atom
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Hybridization
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The mixing of different types of atomic orbitals to produce a set of equivalent hybrid orbitals
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Sigma bonds
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A covalent bond in which electron density is concentrated along the internuclear axis
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Pi bond
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A covalent bond in which electron density is concentrated above and below the internuclear axis
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Delocalized
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Electrons that are spread over a number of atoms in a molecule rather than localized between a pair of electrons
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