mixing of different types of atomic orbitals to produce a set of equivalent hybrid orbitals
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trigonal bipyramidal
5 bonding domains, 0 nonbonding
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diamagnetism
type of magnetism that causes a substance with no unpaired electrons to be weakly repelled from a magnetic field
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bent
2 bonding domains, 1 or 2 nonbonding
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angstrom
unit of metric measurement equal to 1x10-10m, often used to measure atomic distance, Å
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tetrahedral
4 bonding domains, 0 nonbonding
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molecular orbital theory
theory that accounts for the allowed states for electrons in molecules
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square pyramidal
5 bonding domains, 1 nonbonding
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VSEPR theory
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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T-shaped
3 bonding domains, 2 nonbonding
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bonding molecular orbital
molecular orbital in which electron density s concentrated in the internuclear region, σ and π
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square planar
4 bonding domains, 2 nonbonding
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equatorial bond
three electron domains that come off an atom with five total domains with a bond angle of 120°
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trigonal pyramidal
3 bonding domains, 1 nonbonding
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bond order equation
(1⁄2)(MO-MO*)
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molecular orbital diagram
diagram that shows the energies of molecular orbitals relative to the atomic orbitals from which they are derived
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bonding pair
pair of electrons that are shared by two atoms
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pi bond
covalent bond in which electron density is concentrated above and below the line joining the bonded atoms, π bond
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valence-bond theory
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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trigonal planar
3 bonding domains, 0 nonbonding
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molecular orbital
an allowed state for an electron in a molecule, MO
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paramagnetism
property a substance possesses if it contains one or more unpaired electron, will be drawn into a magnetic field
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nonbonding pair
pair of electrons assigned completely to one atom; also called a lone pair
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sigma bond
covalent bond in which electron density is concentrated along the internuclear axis, σ bond
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octahedral
6 bonding domains, 0 nonbonding
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electron domain
regions around a central atom where electrons are likely to be found
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bond order
half the difference of the number of electrons in bonding orbitals and the number of electrons in nonbonding orbitals
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seesaw
4 bonding domains, 1 nonbonding
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antibonding molecular orbital
molecular orbital in which electron density is concentrated outside the region between the two nuclei of bonded atoms, σ* and π*
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axial bond
two electron domains that come off an atom with five total domains with a bond angle of 180°
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linear
2 bonding domains, 0 or 3 nonbonding
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hybrid orbital
orbital that results from the mixing of different kinds of atomic orbitals in the same atom
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