Atomic Theory

1. Black Box Model
   1. Early Theories - 400 B.C.
      1. Common Greek theory was that all matter consisted of four "elements" - earth, air, fire, and water.
      2. Democretus (460-360 BC)
      3. Alchemy, the process of changing base metals to gold, was the chief form of experimentation from this time period until the the late 1600's.
   2. Robert Boyle (1622 - 1691)
   3. Antoine Lavoisier (1743 - 1797)
      1. Lab: Does Mass Change During Chemical Reactions?
      2. Homework: Lab questions.
   4. Joseph Proust (1754 - 1826)
      1. Demo: The Big Bunsen Burner
      2. Lab: Adjusting the Bunsen Burner
      3. Lab: Making water the right way. Put loudest pop ratio on the board when done.
      4. Handout: Good Graphing.
      5. Homework: Lab questions; Read 4.3 and 4.5
   5. John Dalton (1768 - 1828)
   6. William Crookes (1832 - 1919)
2. Plum Pudding Model
   1. J.J. Thompson (1856-1940)
      1. Homework: Read 4.4,4.6, and 4.7
3. Hard nucleus model
   1. Radioactivity
   2. Ernest Rutherford (1871 - 1937)
   3. Homework: Read 11.1 - 11.6
4. Bohr Model of the atom
   1. Niels Bohr (1885 - 1962)
   2. Spectroscopy and Bohr's Model
      1. Electromagnetic Radiation (EMR)
      2. Production of EMR
      3. Homework: Electron Jumping Worksheet; Read Light Your Candy Article from the October '90 Edition of ChemMatters
      4. Emission and absorption spectroscopy
      5. Lab: Flame tests
      6. Homework: Read "Space 1998" article and underline each time were EMR is used in some sort of way to learn more about distant objects.
   3. James Chadwick (1891-1974)
5. The Modern Atom (1950's - present)
   1. Handout: Modern View of the Proton (Download this and open it in an image editing program to print.)
   2. Demo: Atom in a Box Software
   3. Computer Lab: Explore the modern atomic orbitals.
   4. Video Clip: Seeing Atoms
6. Symbolic representation of atoms
   1. Homework: Atomic Practic Sheet
7. Handout: Review Sheet