ATOMIC MODEL TIMELINE
To help you piece together the story of what we know about the "atom", you will be creating a timeline depicting the development of the scientific model of the atom. It has been through new discoveries by philosophers and scientists in physics, as well as chemistry, that the model of the atom has expanded and changed over time. Your assignment is to research the major contributors and significant discoveries that have impacted the atomic model and, from this material, develop a timeline.
Your timeline MUST:
- Include AT LEAST the following scientists/groups:
- Alchemists, Albert Einstein,
- Aristotle and fellow greeks, Geiger,
- Becquerel, Robert Millikan,
- Neils Bohr, Murray Gell-Mann and George Zweig,
- Chadwick, Lavoisier,
- Coulomb, Max Planck,
- Crookes, Ernest Rutherford,
- the Curies, Erwin Schroedinger,
- John Dalton, J.J. Thomson,
- Democritus, Glen T. Seaborg,
- Otto Hahn, Lise Meitner,
- W.K. Roentgen
Include the following pictorial models of the atom:
- indivisible, solid sphere model
- electron cloud model
- planetary or solar system model
- plum (raisin) pudding model
- Rutherford's nuclear atom
Be chronological in its sequence, with the dates clearly shown (it need not be to scale).
Contain, through pictures and/or explanations the significant contributions and experiments of those scientists and atomic models listed above.
Be neat and legible.
Be larger than 8.5 x 11 inch size.
Your timeline is due on ____________________
You do not have to follow the typical horizontal timeline format; you may be creative and use any format you wish. We will spend some class time in the library to assist in your research.
ONE FINAL NOTE: No late timelines will be accepted.
Michael E. Sixtus
Woodrow Wilson Leadership Program in Chemistry
The Woodrow Wilson National Fellowship Foundation
CN 5281, Princeton NJ 08543-5281