3. L Spin

3. L Spin - than 2 electrons per orbital, or, no two...

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E n proportional to 1/n 2 E n n 2 n 2 n
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Atoms other than hydrogen Spin Electron-electron interaction APPROXIMATE techniques: Variational method Perturbation theory Hartree-Fock
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Compton Scattering (1921): AH Compton suggested that “the electron is probably the ultimate magnetic particle. ”Stern - Gerlach Experiment (1922): Passed a beam of silver atoms (4d105s1) through an inhomogeneous magnetic Feld and observed that they split into two beams of space quantized components. Uhlenbeck and Goudsmit (1925) showed that these were two angular momentum states – the electron has intrinsic angular momentum – "SPIN" angular momentum Pauli Exclusion Principle (1925): no more
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Unformatted text preview: than 2 electrons per orbital, or, no two electrons with all the same quantum numbers. Additional quantum number, now called ms, was postulat ed. ELECTRON SPIN Intrinsic Spin The spinning electron reacts similarly to the orbiting electron in a magnetic feld. The magnetic spin quantum number m s has only two values, m s = . DIRAC (1928): Developed relativistic quantum theory and derived electron spin angular momentum POSTULATE # 6 ALL ELECTRONIC WAVEFUNCTION MUST BE ANTYSYMMETRIC UNDER THE EXCHANGE OF ANY TWO ELECTRONS. Stern Gerlach Experiment Spin Eigenfunctions...
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This note was uploaded on 01/21/2011 for the course ENG 167 taught by Professor Phillips during the Winter '07 term at UC Davis.

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3. L Spin - than 2 electrons per orbital, or, no two...

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