1. Chapter 2: Chemical Basis of Life Part I: Structure of Matter

2. Structure of Matter Biochemistry Matter Elements Compounds

3. Structure of Matter Bulk elements- Trace elements- Ultratrace elements-

4. Atomic Structure Atoms Nucleus Electrons Protons Neutrons Fig. 2.1

5. Atomic Structure ●Atomic Number ● Atomic Mass (Weight)

6. Isotopes –Stable Isotopes –Unstable Isotopes O, I, Fe, P, Co Radiation (α,β,γ)

7. Molecules and Compounds Molecule Molecular Formula Compound

8. Fig. 2.2

9. Bonding of Atoms Bonds Electron Shells

10. Fig. 2.3

11. Bonding of Atoms All atoms want to be stable, meaning… –Octet Rule –Inert atoms

12. Bonding of Atoms Ions Cation Anion Ionic Bonds

13. Fig. 2.4

15. Bonding of Atoms Covalent Bond

16. Fig. 2.5

17. Bonding of Atoms

18. Structural Formulas

19. Bonding of Atoms Polar Hydrogen Bonds

20. Figure 2.8

21. Clinical App. 2.1: Radioactive Isotopes Reveal Physiology Iodine-131 –1. –2. –3. Thallium-201 –1. –2. Cobalt-60 –1. –2.