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15 Cards in this Set
- Front
- Back
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Covalent Bond |
a bond formed when atoms share one or more pairs of electrons |
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Molecular Orbit |
the region of high probability that is occupied by an individual electron as it travels with a wavelike motion in the 3-dimensional space around 1 of 2 or more associated nuclei |
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Bond Length |
the distance between two bonded atoms at their minimum potential energy; the average distance between the nuclei of 2 bonded atoms |
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Bond Energy |
the energy required to break the bonds in 1 mol of a chemical compound |
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Nonpolar Covalent Bond |
a covalent bond in which the bonding electrons are equally attracted to both bonded atoms |
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Polar Covalent Bond |
a covalent bond in which a pair of electrons shared by 2 atoms is held more closely by 1 atom |
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Dipole |
a molecule or part of a molecule that contains both positively and negatively charged regions |
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Valence Electron |
an electron that is found in the outermost shell of an atom and that determines the atom’s chemical properties |
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Lewis Structure |
a structural formula in which electrons are represented by dots; dot pairs or dashes between atomic symbols represent pairs in covalent bonds |
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Unshared Pair |
a nonbinding pair of electrons in the valence shell of an atom; also called lone pair |
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Single Bond |
a covalent bond in which 2 atoms share one pair of electrons |
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Double Bond |
a covalent bond in which 2 atoms share 2 pairs of electrons |
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Triple Bond |
a covalent bond in which 2 atoms share 3 pairs of electrons |
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Resonance Structure |
any one of 2 or more possible configurations of the same compound that have identical geometry but different arrangements of electrons |
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VSEPR Theory |
a theory that predicts some molecular shapes based on the idea that pairs of valence electrons surrounding an atom repel each other
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