D04_Physical Science

INTRODUCTION
- Objectives
- How Many Atoms?
- How Many Atoms 2?
- In This Lesson...
HOW TO WRITE FORMULAS
- Pause and Think
- Ion Charges
- How to Write Formulas
- Criss-Cross Method
- Criss-Cross Method Caution!
- Self-Check 1
- Self-Check 2
- Self-Check 3
- Conclusion