Microbiology Ch.2 Chemistry 2.1 Atomic Structure

Overview of Atomic Structure Atoms Nucleus Protons (+) Neutrons (0) Orbitals Electrons (-) Mass number

Overview of Atomic Structure Elements Periodic Table Periods Groups or Families

Overview of Atomic Structure Electron Orbitals Valence Electrons

Microbiology Ch.2 Chemistry 2.2 Chemical Bonds

Compounds & Molecules Coefficient Subscript

Ions & Ionic Bonds Ion Cation (+) Anion (-) Salts

Covalent Bonds Organic (Carbon) Polar Nonpolar Water (H2O) Carbon dioxide (CO2)

Other Bonds & Interactions Hydrogen Bonds Electromagnetic Attraction Water DNA Proteins

Other Bonds & Interactions Hydrogen Bonds in Water Cohesion Adhesion Surface Tension Solubility

Other Bonds & Interactions van der Waals interactions

Avogadro’s Number and the Mole 6.02 X 1023 Example: 1 mole of water H2O = 2 Hydrogen (1 gram X 2) + 1 Oxygen (16 grams) = 18g Water

Average Atomic Mass Isotopes Example: Carbon Atomic Mass = 12.011