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26 Cards in this Set
- Front
- Back
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What is the geometry of a
molecule if it has 2 bonding domains? |
linear
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What is the geometry of a
molecule if it has 3 bonding domains? |
trigonal planar
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What is the geometry of a
molecule if it has 4 bonding domains? |
tetrahedral
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What is the geometry of a
molecule if it has 5 bonding domains? |
trigonal bipyramidal
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What is the geometry of a
molecule if it has 6 bonding domains? |
octahedral
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sp molecules have what kind
of geometry? |
linear
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sp2 molecules have what kind
of geometry? |
triangular planar
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sp3 molecules have what kind
of geometry? |
tetrahedral
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sp3d molecules have what kind
of geometry? |
trigonal bipyramidal
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sp3d2 molecules have what kind
of geometry? |
octahedral
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sp3 molecules have what kind
of geometry? |
tetrahedral
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FC = V - N - (B/2)
What is V, N and B? |
V = valence electrons
N = nonbonding electrons B = bonding electrons |
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What is a covalent bond?
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electrons are shared in a
compound |
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How is the the force of repulsion
minimized in a molecule? |
electrons are paired so that they
have opposite spins; the force of attraction becomes stronger than force of repulsion |
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If electronegativity is less than
1.2, what kind of bond exists? |
covalent
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If electronegativity is between
1.2 and 1.8, what kind of bond exists? |
polar
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If electronegativity is greater than
1.8, what kind of bond exists? |
ionic
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What is the equation for partial
charge on an atom? |
PCa = Va – Na –B (ENa/ ENa + ENb)
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What is the equation for bonding
order? |
BO = 1/2[bonding electrons - antibonding electrons]
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Electronegativity ___ across the periodic table.
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increases
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Electronegativity ___ down the periodic table.
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decreases
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What is a resonance structure?
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There are two possible structures for an atom, but the atom is in fact an average of the structures.
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What is the equation for formal charge?
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FC = V - N - (B/2)
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What does diamagnetic mean?
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No magnetic properties
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When does a molecule have magnetic properties?
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When not all of the electrons are paired
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When does a molecule not have magnetic properties?
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when all of the electrons are paired
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