Lecture10_QM2 - 1 Atomic Spectra The Rutherford Model The...

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2 Atomic Spectra The Rutherford Model The Bohr Model Summary
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3 Please study The Photoelectric Effect The Compton Effect http://hyperphysics.phy-astr.gsu.edu/HBASE/quantum/imgqua/compton.gif γ 0 + e 0 = γ + e ( γ 0 γ ) 2 = ( e e 0 ) 2 E γ 0 + E e 0 = E γ + E e hc / λ 0 + mc 2 = hc / λ + E e
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4 10 Ångström = 1 nano-meter The Balmer Series of Hydrogen (1885) Johann Balmer’s empirical formula
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5 The Balmer Series of Hydrogen (1885) Rydberg-Ritz formula R is the Rydberg constant
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6 Hans Geiger and his advisor Ernest Rutherford University of Manchester, England Rutherford showed that the radiation from uranium consisted of two types: α and β
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7 Radioactive source 214 Bi Gold foil (2000 atoms thick) Scintillation screen Microscope H. Geiger and E. Marsden, Philosophical Review, 25 , 507 (1913)
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8 It was quite the most incredible event that ever happened to me in my life. It was as incredible as if you fired a 15-inch shell at a piece of tissue paper and it came back and hit you
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