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.

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Presentation transcript:

Chapter 6 Section 1 Intro to Chem Bonding pages 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

Chapter 6 Section 1 Intro to Chem Bonding pages Section 1 Introduction to Chemical Bonding

Chapter 6 Section 1 Intro to Chem Bonding pages Chapter Vocabulary Chemical bond Ionic bonding Covalent bonding Nonpolar covalent bond Polar Polar covalent bond

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

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

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

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

Chapter 6 Section 1 Intro to Chem Bonding pages Covalent Bonding p. xx

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

Chapter 6 Section 1 Intro to Chem Bonding pages Electronegativities on Page 161 p. 161

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

Chapter 6 Section 1 Intro to Chem Bonding pages Electronegative Differences p. xx

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

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

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

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

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

Chapter 6 Section 1 Intro to Chem Bonding pages Electron Dot Diagram p. xx

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

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