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CHEM 151 -
Orbitals
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CHEM 151 1st Edition Lecture 15 Outline of Last Lecture I. Photoelectron SpectroscopyII. Modified Shell ModelIII. Quantum TheoryIV. Wave FunctionsOutline of Current Lecture V. Types of OrbitalsVI. Electron ConfigurationsVII. Electron PairingVIII. Trends on Periodic TableIX. Photo Electron SpectrumCurrent LectureTypes of Orbitals:1s -spherical geometry - L = 02s-one s orbital per shell2p- n = 2- L = 13s (one of them)3p (three of them)3d (five of them)- L = 2Electron ConfigurationsOrbitals with lower energy are occupied first.Periodic Table Trends:1A: 1s12A: 2s23A: p14A: p25A: p36A: p47A: p58A: p6Atomic radius increases down and to the left on the periodic
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