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Worksheets for Chapter 7 Say Thanks to the Authors Click http://www.ck12.org/saythanks (No sign in required) To access a customizable version of this book, as well as other interactive content, visit www.ck12.org CK-12 Foundation is a non-profit organization with a mission to reduce the cost of textbook materials for the K-12 market both in the U.S. and worldwide. Using an open-content, web-based collaborative model termed the FlexBook®, CK-12 intends to pioneer the generation and distribution of high-quality educational content that will serve both as core text as well as provide an adaptive environment for learning, powered through the FlexBook Platform®. Copyright © 2014 CK-12 Foundation, www.ck12.org The names “CK-12” and “CK12” and associated logos and the terms “FlexBook®” and “FlexBook Platform®” (collectively “CK-12 Marks”) are trademarks and service marks of CK-12 Foundation and are protected by federal, state, and international laws. Any form of reproduction of this book in any format or medium, in whole or in sections must include the referral attribution link http://www.ck12.org/saythanks (placed in a visible location) in addition to the following terms. Except as otherwise noted, all CK-12 Content (including CK-12 Curriculum Material) is made available to Users in accordance with the Creative Commons Attribution-Non-Commercial 3.0 Unported (CC BY-NC 3.0) License (http://creativecommons.org/ licenses/by-nc/3.0/), as amended and updated by Creative Commons from time to time (the “CC License”), which is incorporated herein by this reference. Complete terms can be found at http://www.ck12.org/terms. Printed: December 23, 2014 www.ck12.org C HAPTER Chapter 1. Worksheets for Chapter 7 1 Worksheets for Chapter 7 Copy and distribute the lesson worksheets. Ask students to complete the worksheets alone or in pairs as a review of lesson content. Orbital Configuration Worksheet CK-12 Foundation Chemistry Name_______________________ Date__________ TABLE 1.1: Draw the Orbital Configuration for these Atoms Symbol Mg Orbital Diagram P Ge Kr O 1 www.ck12.org TABLE 1.1: (continued) Symbol F Orbital Diagram Pb TABLE 1.2: Write the Electron Configuration Code for these Atoms Atom V Mg P Ge Kr O F Pb Electron Configuration Code 1s2 2s2 2p6 3s2 3p6 4s2 3d 3 Quantum Numbers Worksheet CK-12 Foundation Chemistry Name______________________ Date_________ 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 2 Which quantum number indicates the electron’s energy level? Which quantum number indicates the electron’s sub-energy level? Which quantum number indicates the electron’s orbital within the sub-energy level? Which quantum number indicates the electron’s spin? What is the lowest energy level that has a d sub-level? What is the total number of electrons that can exist in the 3rd energy level? Which sub-energy level is indicated by ` = 1? which sub-energy level is indicated by ` = 2? What is the maximum number of electrons that can be held in an f sub-energy level? What does it mean for an electron to be “excited”? What are the n and ` quantum numbers for the last electron in bromine? What are the n and ` quantum numbers for the last electron in iron? What are the n and ` quantum numbers for the electron in hydrogen? www.ck12.org Chapter 1. Worksheets for Chapter 7 14. The three electrons in the 2p sub-energy level of nitrogen have the n and ` quantum numbers. What are the m` quantum numbers for each of these three electrons? 15. What is the basic tenet of the quantum theory? 16. Why are the quantum numbers n = 2, ` = 2, m` = 2, s = 12 , not an acceptable set of quantum numbers for an electron? 17. Sketch a picture of the 2s sub-energy level showing any nodes present. 18. Give the full set of quantum numbers for each of the electrons in a helium atom. 19. What maximum number of electrons in an atom can have the quantum numbers n = 2, ` = 1? 20. What maximum number of electrons in an atom can have the quantum numbers n = 3, ` = 3? Electron Configuration Worksheet CK-12 Foundation Chemistry Name______________________ Date_________ 1. Fill in the orbital electron representation for phosphorus. 2. Fill in the electron orbital configuration for cobalt. 3. Fill in the electron orbital configuration for bromine. 3 www.ck12.org 4. Draw the orbital representation for the electron configuration of calcium. 5. Write the electron configuration code for phosphorus. 6. How many valence electrons does phosphorus have? 7. Write the electron configuration code for cobalt. 8. How many valence electrons does cobalt have? 9. Write the electron configuration code for bromine. 10. How many valence electrons does bromine have? 11. Write the electron configuration code for calcium. 12. How many valence electrons does calcium have? 13. How many valence electrons does tellurium have? 14. What will be the outer energy level electron configuration for element #118? 15. Draw the orbital representation of the electron configuration for silicon. 4 www.ck12.org Chapter 1. Worksheets for Chapter 7 16. How many valence electrons does silicon have? Electron Dot Formulas Worksheet CK-12 Foundation Chemistry Name______________________ Date_________ 1. Draw the electron-dot formula for phosphorus. 2. Draw the electron-dot formula for bromine. 3. Draw the electron-dot formula for cobalt. 4. Draw the electron-dot formula for calcium. 5. Draw the electron-dot formula for silicon. 6. Draw the electron-dot formula for element #118. Answers to Worksheets • The worksheet answer keys are available upon request. Please send an email to [email protected] to request the worksheet answer keys. 5