Chapter 9 Student competencies
Upon completion of this chapter, students should be able to:
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For a given molecule, predict:
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Electron arrangement
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Molecular geometry
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Bond angle
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Hybridization
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Polarity
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Bond order
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Number of sigma and pi bonds
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Draw a diagram that relates bond distance to potential energy. As
a bond is compressed; explain why the potential energy increases.
As a bond is stretched past the point of equilibrium, explain why the potential
energy increases. Identify how bond distance and bond energy can
be determined from this diagram.
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Explain how hybrid orbitals are formed by starting with the valence electron
configuration.
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Explain what sigma and pi bonds are.
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Draw a molecular orbital diagram for a given molecule. Use the MO
diagram to predict bond order and whether the molecule is paramagnetic
or diamagnetic.