1. Do Now
Why do atoms form chemical bonds, and what happens during the bonding process?

2. Ionic Bonding and Ionic Compounds
Chapter 6

3. Essential Question
What are the three main types of bonds and how are they different?

4. Chemical Bonds
Chemical bonds: the attraction that holds two elements together (involves valence electrons).
Compound: two or more elements chemically bonded together.

5. 3 Main Types of Bonds
Ionic Bond
Covalent Bond
Metallic Bond

6. Ionic Bonds
Ionic bond: formed between two (or more) elements by the transfer of electrons.
Formed between a metal & nonmetal.
Ion: a charged atom
Cation = positive (+) charge
Anion= negative (-) charge

7. Naming Ionic Compound
The cation (positively charged ion) keeps its name
The anion (negatively charged ion) changes the end of its name to ide

8. Ionic Compound All compounds have an overall charge of zero.
Cations give their electrons to anions in an ionic bond:
CATIONS ARE ALWAYS LISTED FIRST
Na+ ion + Cl- ion → SodiumChloride (NaCl)
Mg+ ion + O- ion → MagnesiumOxide (MgO)
Mg+ ion + Cl- ion → MagnesiumChloride (MgCl2)

9. Writing Ionic Formulas
Simple Rule: balance out the (+) and (-) ion charges so they equal to zero.
Na1+ + Cl1-
Mg2+ + O2-
Mg2+ + Cl1-

10. Characteristics of Ionic Bonding
Ionic compounds are arranged in an orderly form known as a crystal lattice
They are held together by the oppositely charged ions.
In a solid state, the lattice arrangements, the ionic compound cannot conduct electricity.
In a liquid or solution, the ions are released and are able to conduct electricity.