3. Atomic Fashions: Rutherford & Bohr
After completing this session, it’s best to be capable to:
– Understand Thomson’s “plum pudding” mannequin.
– Understand Rutherford’s “nuclear” model.
– Clarify the Bohr mannequin of hydrogen.
– Understand Bohr’s quantization condition.
Archived Lecture Notes #1 (PDF), Sections 1-three
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Lecture Slides (PDF – 9.3MB)
Periodic Desk and Desk of Constants
Prof. Sadoway talks about the rules of trendy chemistry and the way that led batman t shirt original university to the understanding of the structure of the atom. Fashion Cotton Printed On Flying Iron Man Children’s T-shirt He details Bohr’s postulates for the hydrogen atom and discusses how the Planck-Einstein relationship applies to electron transitions. He defines the different isotopes of hydrogen.
This lecture contains the following:
– J. J. Thomson’s “plum pudding” model – Electrons are distributed uniformly throughout the atom
– Conclusions from the gold foil experiment
– Majority of the mass is discovered within the nucleus
– Electrons orbit across the nucleus
– Explanation of blackbody radiation and atomic spectra
– Postulates: – Electrons follow circular orbits round a nucleus
Orbital angular momentum is quantized hence only sure orbits are potential
– Electrons in stable orbits don’t radiate
– Electrons change orbits by radiating or absorbing photons
For Further Examine
Ottaviani, J. Suspended in Language: Niels Bohr’s Life, Discoveries, and the Century He Shaped. GT Labs: Ann Arbor, MI, 2004. ISBN: 9780978803728.
Rozental, S. Niels Bohr: His Life and Work as Seen by His Friends and Colleagues. New York, NY: Wiley, 1967.
Bohr, Niels H. D. On the Constitution of Atoms and Molecules. New York, NY: W.A. Benjamin, 1963.
Bohr, Niels H. D. Atomic Physics and Human Information. New York, NY: Wiley, 1958.
Bohr, Niels. “On the Structure of Atoms and Molecules.” Philosophical Journal Collection 6 26 (July 1913): 1-15.
Cathcart, B. The Fly in the Cathedral: How a Small Group of Cambridge Scientists Received the Race to Split the Atom. New York, NY: Penguin, 2005. ISBN: 9780670883219.
Andrade, E. N. Rutherford and the nature of the Atom. Garden Metropolis, NY: Doubleday, 1964.
Frayn, M. Copenhagen: A Play in Two Acts. New York, NY: S. French, 2000.
Miller, D. P. Discovering Water: James Watt, Henry Cavendish and the Nineteenth Century Water Controversy. Burlington, VT: Ashgate, 2004. ISBN: 9780754631774.
How Atoms Work
Joseph Thompson – 1906 Nobel Prize in Physics
Ernest Rutherford – 1908 Nobel Prize in Chemistry
Max Planck – 1918 Nobel Prize in Physics
Albert Einstein – 1921 Nobel Prize in Physics
Niels Bohr – 1922 Nobel Prize in Physics
Robert Millikan – 1923 Nobel Prize in Physics
Werner Heisenberg – 1932 Nobel Prize in batman t shirt original university Physics
Harold Urey – 1934 Nobel Prize in Chemistry
Charles-Augustin de Coulomb
James Prescott Joule
Different OCW and OER Content material
Lecture 2: Discovery of Electron and Nucleus
Lecture 5: Hydrogen Atom Power Levels
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