KEY-FinalExamStudyGuide_Fall2013

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Name ___________________________ Date ___________________ Class __________________ CHAPTER 7, Ionic and Metallic Bonding (continued) 6. Label each of the following arrangements of atoms with the correct name. __________________________________ body-centered cubic __________________________________ hexagonal close-packed __________________________________ face-centered cubic 7. Circle the letter of each metal whose atoms form a face-centered cubic pattern. a. magnesium c. sodium b. copper d. aluminum Match the arrangement with the number of neighbors each atom in the arrangement has. ______ b 8. body-centered cubic a. 12 ______ a 9. face-centered cubic b. 8 ______ a 10. hexagonal close-packed Alloys (page 203) 11. A mixture of two or more elements, at least one of which is a metal, is called a(n) _________________ alloy . 12. Is the following sentence true or false? Pure metals are usually harder and more durable than alloys. _________________ false 13. The most common use of nonferrous alloys is in _________________ coins . © Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved. 64 Guided Reading and Study Workbook
Name ___________________________ Date ___________________ Class __________________ 14. What four properties make steel an important alloy? a. b. c. d. corrosion resistance ductility hardness toughness 15. What are the component elements for the following alloys? a. sterling silver silver and copper b. brass copper and zinc c. surgical steel iron, chromium, nickel, and molybdenum d. cast iron iron and carbon 16. _________________ Interstitial alloys have smaller atoms that fit into the spaces between larger atoms. _________________ Substitutional alloys have component atoms that are roughly equal in size. © Pearson Education, Inc., publishing as Pearson Prentice Hall. All rights reserved. Chapter 7 Ionic and Metallic Bonding 65
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KEY-FinalExamStudyGuide_Fall2013

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