1. Do Now
Describe the difference between an ionic bond and a covalent bond.

2. Aim
What do we know about chemical bonding so far?

3. Basics Atoms form bonds to become stable
When atoms bond, they attain the electron configuration of
But which one?

4. Basics
How do we know how many electrons an atom loses or gains?

5. Lewis Structures
Draw the atomic symbol
Draw one dot per the atom has

6. Ionic Bonding Ionic bonds form between and We call these compounds
In an ionic bond, electrons are from one atom to another

7. Ionic Bonding Draw a Lewis Structure for NaCl
Draw a Lewis Structure for K2S

8. Covalent Bonding Covalent bonds form between two
We call these compounds
In a covalent bond, electrons are between both atoms
Each bond represents electrons

9. Covalent Bonding Draw a Lewis Structure for CH4
Draw a Lewis Structure for NH3

10. Covalent Bonding
Two structures with the same chemical formula are called
Draw two structures for C2H6O

11. Complex Ions A molecule can act as an ion
Draw the Lewis Structure of the molecule, then make it look like a salt
Example: CaCO3

12. Complex Ions Some complex ions violate the
For these we use oxidation states
Oxidation states represent

13. Complex Ions Draw a Lewis Structure for SO4-
Draw a Lewis Structure for CrO42-

14. Questions, comments, concerns?