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15 Cards in this Set
- Front
- Back
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how would you determine the shape of a molecule?
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divide the total number of valence electrons by 8 to obtain the number of BONDING PAIRS. the remainder is the number of electrons residing in the central atom as NONBONDING (LONE) PAIRS.
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2 pairs around the central atom yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
a linear shape
180 degrees nonpolar sp AX2 |
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3 pairs, with no lone pairs, around the central atom yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
trigonal planar
120 degrees nonpolar sp2 AX3 |
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3 pairs, with one lone pair, around the central atom yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
bent
<120 degrees polar sp2 AX2E |
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4 pairs, with no lone pairs around the central atom yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
tetrahedral
109.5 degrees nonpolar sp3 AX4 |
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4 pairs with one lone pair yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
trigonal pyramidal
<109.5 degrees polar sp3 AX3E |
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4 pairs with 2 lone pairs yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
bent
<109.5 degrees polar sp3 AX2E2 |
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5 pairs with no lone pairs yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
trigonal bipyramidal
120 or 90 nonpolar sp3d AX5 |
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5 pairs with 1 lone pair yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
Seesaw
<120 or 90 polar sp3d ax4e |
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5 pairs with 2 lone pairs yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
t-shaped
90 degrees polar sp3d AX3E2 |
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5 pairs with 3 lone pairs yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
linear
180 degrees nonpolar sp3d AX2E3 |
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6 lone pairs with no lone pairs yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
octahedral
90 degrees nonpolar sp3d2 AX6 |
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6 pairs with one lone pair yields what shape?
what angle does it create? polar or nonpolar? hybridization? example? |
square pyramidal
<90 degrees polar sp3d2 AX5E |
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6 pairs with 2 lone pairs yields what shape?
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square planar
90 degrees nonpolar sp3d2 AX4E2 |
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which shapes are nonpolar?
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molecules with no lone pairs - linear, trigonal planar, tetrahedral, trigonal bipyramidal, octahedral
OR linear (2 pairs and 3 lone pairs) and square planar |
