Molecular Orbital Theory Worksheet

 

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  1. Orbitals are  ________ functions.  One property of waves is that they can ___________ or _________ interfere with each other. 

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  2. What is constructive interference?

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  3. What is destructive interference?

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  4. How does this relate to our understanding of orbital interactions?

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  5. What is Molecular Orbital Theory?

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  6. Facts about molecular orbitals?

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  7. Why do bonds occur?

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  8. Fill in the following chart

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  9. What is a Molecular Orbital Diagram?

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  10. Draw the Molecular Orbital Diagram

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    1. H2
    2. H2+
    3. H2-

     

     

  11. What is bond order?

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  12. Some facts about bond order:

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  13. What do the bond orders for #12 tell us about relative stabilities of H2 , H2+ ,H2-

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  14. _______________ substances have ____________ electrons and are therefore attracted toward a magnetic field.
    _______________ substances have ____________ electrons and are therefore repelled by a magnetic field

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  15. What is the order of  molecular orbitals for B­2, C2 and N2?

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  16. What is the order of  molecular orbitals for O2 and F2?

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  17. Draw the Molecular orbital diagrams for N2 and O2.

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  18. Why do B­2, C2 and N2 have a different MO order compared to O2 and F2?

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  19. Given:

    N22-, O22-, F22-

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    1. Write out the MO electron configuration for each.

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    2. Which is predicted to be the most stable diatomic species?

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    3. Indicate whether each is paramagnetic or diamagnetic.

     

     

  20. Use the MO model to predict the bond order and magnetism for Ne2 and P2.

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  21. Complete the MO diagram for NO.

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  22. How do we reconcile these two theories (i.e. LE and MO models)?

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