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
Chapter 6 Section 3 Ionic Bonding... pages

2. 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

3. Ionic Bonding and Ionic Compounds
Section 3
Ionic Bonding and Ionic Compounds
Chapter 6 Section 3 Ionic Bonding... pages

4. 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

5. Formation of Ionic Compounds1+ 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

6. Formation of Ionic Compounds1- F F 2+ Ca Ca 1- F F
Chapter 6 Section 3 Ionic Bonding... pages

7. 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

8. Crystal Lattice Animation
p. 191
Chapter 6 Section 3 Ionic Bonding... pages

9. 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

10. Lattice Energy Animation
p. 192
Chapter 6 Section 3 Ionic Bonding... pages

11. 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

12. 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

13. Ionic Compounds & Conductivity
p. xx
Chapter 6 Section 3 Ionic Bonding... pages

14. 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

15. Comparing Ionic & Covalent Compounds
Chapter 6 Section 3 Ionic Bonding... pages

16. Chapter 6 Section 3 Ionic Bonding... pages 190-194
Ionic vs. Molecular
Chapter 6 Section 3 Ionic Bonding... pages

17. 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

18. 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