lecnotes07 - MIT OpenCourseWare http/ocw.mit.edu 5.111...

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Unformatted text preview: MIT OpenCourseWare http://ocw.mit.edu 5.111 Principles of Chemical Science Fall 2008 For information about citing these materials or our Terms of Use, visit: http://ocw.mit.edu/terms . _______________________________________________________________________________ ________________________________________________________________________________ 5.111 Lecture Summary #7 Readings for today: Section 1.10 (1.9 in 3 rd ed ) – Electron Spin, Section 1.11 (1.10 in 3 rd ed ) – The Electronic Structure of Hydrogen. Read for Lecture #8: Section 1.12 (1.11 in 3 rd ed ) – Orbital Energies (of many-electron atoms), Section 1.13 (1.12 in 3 rd ed ) – The Building-Up Principle. Topics: I. RPD for s-orbitals (continued from Lecture #6) II. p-orbitals A . The shape of p-orbitals B. Radial probability distributions III. Electron spin and the fourth quantum number IV. Wavefunctions for multielectron atoms I. RADIAL PROBABILITY DISTRIBUTIONS (RPD) FOR S-ORBITALS Radial Probability Distribution: The probability of finding an electron in a spherical shell of thickness dr at a distance r from the origin. Knowing only probability is one of main consequences of Quantum Mechanics. Unlike CM, QM is non-deterministic. The uncertainty principle forbids us from knowing r exactly. II. P ORBITALS • For any subshell of l = 1, there are three p-orbitals, _____, _____, and _____....
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lecnotes07 - MIT OpenCourseWare http/ocw.mit.edu 5.111...

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