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 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Ionic compound Formula unit Lattice energy Polyatomic ion Chapter Vocabulary Chapter 6 Section 3 Ionic Bonding... pages 190-194
Ionic Bonding and Ionic Compounds Section 3 Ionic Bonding and Ionic Compounds Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Ionic Compounds Compound of positive and negative ions that are combined so that the number of positive and negative charges are equal Formula unit – the simplest collection of atoms from which an ionic compound’s formula can be established Chapter 6 Section 3 Ionic Bonding... pages 190-194
Formation of Ionic Compounds 1+ 1- Na Cl Na Cl sodium atom loses 1 e- positive ion chlorine atom gain 1 e- negative ion sodium cation chlorine anion Chapter 6 Section 3 Ionic Bonding... pages 190-194
Formation of Ionic Compounds 1- F F 2+ Ca Ca 1- F F Chapter 6 Section 3 Ionic Bonding... pages 190-194
Characteristics of Ionic Bonding Crystal Lattice An orderly of arrangement positive and negative ions Potential energy is minimized The distance between and arrangement of the ions balance repulsive and attractive forces Na+ Cl - Chapter 6 Section 3 Ionic Bonding... pages 190-194
Crystal Lattice Animation p. 191 Chapter 6 Section 3 Ionic Bonding... pages 190-194
Characteristics of Ionic Bonding Lattice Energy The energy released with one mole of an ionic crystal is formed from gaseous ions The energy value is negative because energy is released Chapter 6 Section 3 Ionic Bonding... pages 190-194
Lattice Energy Animation p. 192 Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Ionic vs. Molecular Ionic Compounds Made up of ions Stronger attractions between ions so ionic compounds have… High melting points High boiling points Solids at room temperature Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Ionic vs. Molecular Ionic Compounds Will conduct electricity when dissolved or melted, ions are separated and free to move Brittle because a “bump” causes ion layers to be out of alignment and repel each other Chapter 6 Section 3 Ionic Bonding... pages 190-194
Ionic Compounds & Conductivity p. xx http://ithacasciencezone.com/chemzone/lessons/03bonding/dissociate.htm Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Ionic vs. Molecular Molecular Compounds Made up of molecules Weaker attractions between molecules so molecular compounds have… Low melting points Low boiling points Gases or liquids at room temperature Chapter 6 Section 3 Ionic Bonding... pages 190-194
Comparing Ionic & Covalent Compounds Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Ionic vs. Molecular Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Polyatomic Ions A group of atoms that is bonded covalently but together has gained or lost electrons Examples (NH4)1+ (NO3)1- (SO4)2- (PO4)3- List on page 226. Chapter 6 Section 3 Ionic Bonding... pages 190-194
Chapter 6 Section 3 Ionic Bonding... pages 190-194 Section 3 Homework Section Review page 194 #1-5 Chapter 6 Section 3 Ionic Bonding... pages 190-194