1. List the steps for drawing a Lewis structure for an ionic compound. 2. Draw the Lewis structure for KCl. 3. Draw the Lewis structure for CaCl . 4. A single bond results when ___ electrons are shared between atoms. Such bonds can be represented by __________ . 5. A double bond results when ___ electrons are shared between atoms. Such bonds can be represented by __________ . 6. Based on your answers to the last two questions, see if you can answer this one: A triple bond results when ____ electrons are shared between atoms. Such bonds can be represented by __________ . 7. List the steps for drawing a Lewis structure for a covalent compound. 2 Constructing Lewis Structures 8. Construct the Lewis structure for each of the following compounds. In the space provided, draw the correct Lewis structure. Lewis Structures: Single Bonds F (molecular fluorine) H O NH CH O (methoxide) 2 2 3 3 Lewis Structures: Double Bonds O CH CCH (allene) Lewis Structures: Triple Bonds N 9. Did you have difficulty determining the structures for any of these compounds? Circle any compound you had trouble with and explain what caused you problems. 10. Construct the Lewis structure for each of the following compounds. In the space provided, draw the correct Lewis structure. Lewis Structures: Various Covalent Compounds boron trifluoride ethanol hydrogen fluoride hydrogen peroxide methyl fluoride oxygen difluoride 2 2 2 2 phosphine ozone (challenge question) Additional Practice (Homework) Draw Lewis structures for each of the following compounds. The type of bond(s) is indicated with an I (ionic) or a C (covalent). 1. BaO (I) 2. NaF (I) 3. MgBr (I) 4. CH (C) 5. NF (C) 6. CS (C) 7. SiCl (C) 2 4 3 2 4 SAS® Curriculum Pathways® Copyright © 2014 SAS Institute Inc., Cary, NC, USA, All Rights Reserved Conclusion (Homework) Now, you can address the Focus Question—What’s the connection between dots and compounds? To answer this question, describe how Lewis structures can be used to represent both ionic and covalent compounds. Discuss the similarities and differences between the structures for ionic and covalent compound
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