1. 1 Chemistry of Life Chemistry: study of matter Biochemistry: study of living matter

2. 2 Matter Anything with mass that occupies space Solid, liquid, gas (depending upon density)

3. 3 Properties of matter Chemical: characteristics of matter as it undergoes change in composition Physical: characteristics of matter such as color, density, hardness, melting point, boiling point, electrical and thermal conductivities

4. 4 Types of matter MATTER MIXTURESPURE SUBSTANCES Homogenous Heterogeneous COMPOUNDS ELEMENTS

5. 5 Terminology Atom: smallest particle of an element Molecule: smallest particle of an element or compound that can have a stable independent existence

6. 6 Atom of an element Nucleus Neutron Proton Electron

7. 7 Periodic table of elements Atomic number Atomic mass Electronegativity Ionization number Valence number

8. 8 Chemical formulas Show the chemical composition of a substance

9. 9 Electron shells

10. 10 Bonds Ionic Covalent Hydrogen Chemical reactions represent forming or breaking of bonds.

11. 11 Ions and Ionic compounds Gaining or losing electrons in the outer shell  cations or anions

12. 12 Hydrogen bonds Weak when few, strong when many

13. 13 Covalent bonds Sharing electrons in the outer shell

14. 14 Polar covalent bonds contribute to water properties (cohesion & adhesion) Water chemistry

15. 15 Water dissociation  weak acids and bases

16. 16 Water vs. Ice

17. 17 Solvent

18. 18 Proteins Membrane & cellular proteins