Tutorials and Problem Sets

Tutorials

1. The Origin of the Atom Concept in Greek Philosophy
2. Atomic Thinking from Democritus to Dalton
3. John Dalton and the Chemical Atomic Hypothesis
4. From Dalton to J.J. Thomson
5. J.J. Thomson and the Discovery of the Electron
6. The Thomson Model of the Atom
7. J.J. Thomson and the Discovery of the Proton
8. A Brief History of Rutherford's Experiment
9. The Rutherford Model of the Atom
10. Determination of the Charge on the Electron: Thomson and Robert Millikan
11. Henry Moseley: The Atomic Number Gives the Number of Protons in the Nucleus
    • Leading up to Moseley: Atomic Weights and Periodic Properties
    • Leading up to Moseley: X-Ray Spectra
    • Moseley's Discovery: The Modern Concept of Atomic Number
12. Rutherford Proposes the Neutron
13. James Chadwick and the Discovery of the Neutron
14. The Nuclear Symbol: Atomic Number and Mass Number
15. The Development of the Isotope Concept
16. How to Calculate an Average Atomic Weight
17. The Mass Spectroscope: J.J. Thomson and Francis Aston
18. Supplemental reading materials
    • An article on the discovery of the proton, neutron, and electron
    • A time line discussion covering the development of atomic structure ideas
    • Lecture notes on the discovery of the electron
    • A discussion of canal rays and discovering the proton
    • An article on the discovery of the proton
    • Lecture notes on the nuclear symbol

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