1. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 1 Modern Chemistry Chapter 6 Chemical Bonding Sections 1-5 Introduction to Chemical Bonding Covalent Bonding & Molecular Compounds Ionic Bonding & Ionic Compounds Metallic Bonding Molecular Geometry

2. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 2 Section 1 Introduction to Chemical Bonding

3. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 3 Chapter Vocabulary Chemical bond Ionic bonding Covalent bonding Nonpolar covalent bond Polar Polar covalent bond

4. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 4 Types of Chemical Bonding Chemical Bond – a mutual electrical attraction between the nuclei and valence electrons of different atoms that binds the atoms together.

5. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 5 Types of Chemical Bonding Ionic Bonding – a bond that results from the electrical attraction between cations and anions p. 176

6. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 6 Ionic Bonding p. xx

7. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 7 Types of Chemical Bonding Covalent Bonding – results from the sharing of electron pairs between atoms p. 176

8. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 8 Covalent Bonding p. xx

9. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 9 Ionic or Covalent? The type of bond can be estimated by calculating the difference in the elements’ electronegativity.

10. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 10 Electronegativities on Page 161 p. 161

11. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 11 Type of Bond HCl H = 2.1 Cl = 3.0 3.0 – 2.1 = 0.9 Polar Covalent H2H2 H = 2.1 2.1 - 2.1 = 0 Nonpolar Covalent

12. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 12 Electronegative Differences p. xx

13. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 13 Practice Problems Find the type of bond of the following… H 2 S Cs 2 S SCl 6 NCl 3 p.177 1. PC 2. I 3. PC 4. NPC

14. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 14 Polar and Nonpolar Nonpolar Covalent –Electrons are shared equally by the bonded atoms –Balanced distribution of charge

15. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 15 Polar and Nonpolar Polar Covalent –Electrons are shared equally by the bonded atoms because of the atom unequal attraction –Uneven distribution of charge

16. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 16 What is it? p. xx

17. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 17 Electron Dot Diagrams Shows the valence electrons as dots around the symbol

18. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 18 Electron Dot Diagram p. xx

19. Chapter 6 Section 1 Intro to Chem Bonding pages 175-177 19 Section 1 Homework Section Review Page 177 #1-6