Chapter 4: Atomic Structure Difficulty Level: At Grade Created by: CK-12 CK-12 Chemistry Concepts - Intermediate Read Resources Details Chapter Outline 4.1. Democritus’ Idea of the Atom4.2. Conservation of Mass4.3. Law of Definite Proportions4.4. Law of Multiple Proportions4.5. Mass Ratio Calculation4.6. Dalton’s Atomic Theory4.7. Cathode Ray Tube4.8. Electrons4.9. Oil Drop Experiment4.10. Protons4.11. Neutrons4.12. Thomson’s Atomic Model4.13. Rutherford’s Atomic Model4.14. Atomic Nucleus4.15. Atomic Number4.16. Mass Number4.17. Isotopes4.18. Atomic Mass Unit4.19. Calculating Atomic Mass Chapter Summary Image Attributions Description This chapter covers the atom - evolution of the atomic model, atomic theories, structure of the atom, isotopes, and atomic mass. Date Created: Oct 21, 2015 Last Modified: Nov 05, 2015 You can only attach files to chapter which belong to you If you would like to associate files with this chapter, please make a copy first.