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Hybridization

Hybridization . Part 2: Practice. Objective Today I will be able to: Predict the molecular shape of a molecule using the VSEPR theory Apply hybridization to determining the orbital shape of a molecule Practice identifying the hybridization characteristics of different molecules

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Hybridization

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  1. Hybridization Part 2: Practice

  2. Objective • Today I will be able to: • Predict the molecular shape of a molecule using the VSEPR theory • Apply hybridization to determining the orbital shape of a molecule • Practice identifying the hybridization characteristics of different molecules • Evaluation/ Assessment • Informal assessment – Listening to group interactions as they complete the hybridization practice • Formal Assessment – Analyzing student responses to the exit ticket and the Hybridization practice. • Common Core Connection • Make sense of problem and persevere in solving them • Reason abstractly and quantitatively • Use appropriate tools strategically • Look for and make use of structure

  3. Lesson Sequence • Warm – Up • Explain and Elaborate: Hybridization Notes Part 2 • Elaborate and Engage: Hybridization Practice • Evaluate: Exit Ticket

  4. Warm - Up • What are hybrid orbitals? • True or false: The non-central atoms determine the hybrid orbital types for a molecule • How many orbitals are in each of the following hybrid options: • sp3d • sp • sp3d3

  5. Objective • Today I will be able to: • Predict the molecular shape of a molecule using the VSEPR theory • Apply hybridization to determining the orbital shape of a molecule • Practice identifying the hybridization characteristics of different molecules

  6. Homework • STEM Fair Presentations – January 22 • Study for quiz!

  7. Agenda • Warm – Up • Hybridization Notes Wrap-Up • Hybridization practice • Exit Ticket

  8. Hybridization Finishing up the notes

  9. Hybridization BeF2 1) Focus on Be 2) Write the orbital diagram for Be **You need to have 2 e- available to bond to F 3) Write a new orbital diagram 4) Promote electrons

  10. BeF2 Original Hybrid

  11. Hybridization BCl3 1) Focus on B 2) Write the orbital diagram for B 3) Write a new orbital diagram 4) Promote electrons

  12. http://www.dlt.ncssm.edu/tiger/diagrams/moleculargeometry/BCl3_Hybrid.gifhttp://www.dlt.ncssm.edu/tiger/diagrams/moleculargeometry/BCl3_Hybrid.gif

  13. Consider CH4 Carbon has 4 valence electrons 1s2 2s2 2p2 2 of the electrons are in the s orbital and 2 are in the p orbital. s & p have different shapes and different amounts of energy.

  14. Consider CH4 To create 4 equal bonds, carbon’s one 2s and three 2p orbitals fuse into 4 new identical orbitals called sp3. 2p Hybridization sp3 2s

  15. What type of hybridization does BF3 have? • 1s2 2s2 2p1 Empty hybridized orbitals are dropped 2p Hybridization So sp3 becomes sp2 sp3 2s sp2

  16. How do you include lone pairs of e- in hybridization? • Each lone pair of electrons has it’s own hybridized orbital. • See next slide.

  17. What type of hybridization does H2O have? Oxygen e- configuration 1s2 2s2 2p4 (Use oxygen because it is the central atom) 2p Hybridization sp3 2s

  18. Draw the hybridization orbital diagram for phosphorus in PCl3

  19. Hybridization Practice

  20. Try this hybridization animation http://www.mhhe.com/physsci/chemistry/essentialchemistry/flash/hybrv18.swf

  21. Exit Ticket • Determine the shape and hybridization of the following molecules and its central atom • XeF4 • PCl5 • NH3

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