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15 Cards in this Set
- Front
- Back
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Lewis theory |
Allows us to accurately predict the skeletal structures of molecular compounds |
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Dashed Wedge |
shows that the electron pair is behind the central atom |
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Solid wedge |
show that the electron pair is in front of the central atom |
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Regular line |
the electron pair is in the plane of the page |
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1 electron gorup |
single double triple or lone pair or unpaired electron |
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Polarity of molecules |
If the sum of the bond dipoles in a molecule = 0, then a molecule is non-polar.- If the sum of the bond dipoles in a molecule ≠ 0, then the molecule is polar |
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Sigma bonds |
A sigma (σ) bond is formed by the end-on overlap between two half-filled atomicorbitals. |
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Pi bonds |
A pi (π) bond is formed by the side on overlap of two half-filled valence atomic orbitals |
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single bond |
one sigma bond |
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double bond |
one sigma bond, one pi bond |
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triple bond |
one sigma bond, 2 pi bonds |
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Hybridization |
Involves the mathematical mixing of atomic orbitals of an atom which formhybridized orbitals. The total number of atomic orbitals mixed = total hybridized orbitals produced |
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Unpaired electrons in MOs |
paramagnetic compound |
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Paired electrons in MOs |
Diagmagnetic compound |
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Bond order |
Bond order of a diatomic molecule (number of multiple bonds) Bond order = (# 𝐛𝐨𝐧𝐝𝐢𝐧𝐠 𝐞− # 𝐚𝐧𝐭𝐢𝐛𝐨𝐧𝐝𝐢𝐧𝐠 𝐞−) / 𝟐 |
