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11 Cards in this Set
- Front
- Back
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Define promotion as related to valence bond theory |
When an atom brings an electron from a lower hybridization state to a higher hybridization state. |
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Define hypervalence |
A hypervalent molecule is a molecule that formally contains more than eight electrons in their valence shell |
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Define hybridization |
The concept of mixing atomic orbitals into new hybrid orbitals suitable for the pairing of electrons to form chemical bonds in valence bond theory |
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Define paramagnetic |
A property of materials in which charges are used as a form of attraction. These have at least 1 unpaired electron |
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Define diamagnetic |
Molecules that only contain paired electrons |
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Define bond length |
The average distance between nuclei of two bonded atoms in a molecule |
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Define bond strength |
The strength with which a chemical bond holds two atoms together that is measured in the amount of energy needed to break the bond |
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Define covalent radius |
Half of the internuclear separation between the nuclei of two single bonded atoms of the same species |
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Define bond order |
The number of chemical bonds between a pair of atoms. It is an indication of the strength of a bond |
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Calculating bond order |
BO = [(# of bonding electrons)- (#of antibonding electrons)] / 2 |
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Relation between bond order and bond length |
The higher the bond order, the shorter the bond length |
