Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
18 Chemical Bonds BIGIDEA Write the Big Idea for this chapter. Use the “What I Know” column to list the things you know about the Big Idea. Then list the questions you have about the Big Idea in the “What I Want to Find Out” column. As you read the chapter, fill in the “What I Learned” column. W What I Want to Find Out Copyright © McGraw-Hill Education. Permission is granted to reproduce for classroom use. K What I Know Science Notebook • Chemical Bonds 271 L What I Learned 18 Chemical Bonds 1 Stability in Bonding 6(C), 6(D), 7(B) MAINIDEA Write the Main Idea for this lesson. REVIEW VOCABULARY Recall the definition of the Review Vocabulary term. compound compound NEW VOCABULARY Define each New Vocabulary term. chemical formula chemical formula chemical bond ACADEMIC VOCABULARY unique Define unique. Use a dictionary for help. Then use the word in a sentence that demonstrates its scientific meaning. unique Science Notebook • Chemical Bonds 272 Copyright © McGraw-Hill Education. Permission is granted to reproduce for classroom use. chemical bond 1 Stability in Bonding (continued) Student Edition, pp. 552–556 Evaluate why sodium chloride is not like the elements that form it. Reading Essentials, pp. 314–317 Complete the graphic organizer. Use the table in your book for information. Silicon dioxide contains one atom of and atoms of Copyright © McGraw-Hill Education. Permission is granted to reproduce for classroom use. GET IT? . Describe what a chemical formula shows you. Summarize what can be learned about an element from its electron dot diagram. Science Notebook • Chemical Bonds 273 1 Stability in Bonding (continued) Student Edition, pp. 554–556 Create your own electron dot diagrams for sodium and chlorine. Explain how both atoms could become more stable. Reading Essentials, pp. 317–319 Complete the statements about chemical bonds. , When atoms , or , pulling electrons, an attraction forms between the . The attraction is called a . A chemical bond is the that . CONNECT IT Make an analogy between the sharing of electrons and the completion of a jigsaw puzzle. Science Notebook • Chemical Bonds 274 Copyright © McGraw-Hill Education. Permission is granted to reproduce for classroom use. them together to form a 1 Stability in Bonding (continued) REVIEW I T ! 1. MAINIDEA Explain why some elements are stable on their own while others are more stable in compounds. 2. Compare and contrast the properties of potassium (K) and iodine (I) with the compound KI. 3. Identify what the electron dot diagram tells you about bonding. Copyright © McGraw-Hill Education. Permission is granted to reproduce for classroom use. 4. Explain why electric forces are essential to forming compounds. 5. Describe why chemical bonding occurs. Give two examples of how bonds can form. 6. Think Critically The label on a box of cleanser states that it contains CH3 COOH. What elements are in this compound? How many atoms of each element can be found in a unit of CH3 COOH? 7. Use Percentages Given that the molecular mass of magnesium hydroxide (Mg(OH )2) is 58.32 amu and the atomic mass of an atom of oxygen is 15.999 amu, what percentage of this compound is oxygen? Science Notebook • Chemical Bonds 275