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1. a) In the higher periods of the periodic table, there is more mixing between s...

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a) In the higher periods of the periodic table, there is more mixing between s and p orbitals. Without doing detailed calculations, it may not be clear whether Cl2 has “significant" mixing. Draw molecular orbital diagrams for this molecule (valence orbitals only!) for both the “significant mixing” and “insignificant mixing” cases. Can you distinguish which of these is the correct diagram based on magnetic properties of the molecule? Why or why not?

b) Draw a molecular orbital energy diagram for OH– . (a) What is the bond order? (b) What are the “highest occupied molecular orbitals?” (HOMOs) (c) Describe how this molecular orbital diagram the similar to and different from HF, and describe what this might mean for the properties of OH– .

c) Draw molecular orbital diagrams for NO, NO+, and NO– . Give the bond order and magnetic properties for each. Which is likely to have the shortest bond length?

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