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Advanced Structural Inorganic Chemistry$
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Wai-Kee Li, Gong-Du Zhou, and Thomas Mak

Print publication date: 2008

Print ISBN-13: 9780199216949

Published to Oxford Scholarship Online: May 2008

DOI: 10.1093/acprof:oso/9780199216949.001.0001

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The Electronic Structure of Atoms

The Electronic Structure of Atoms

(p.29) 2 The Electronic Structure of Atoms
Advanced Structural Inorganic Chemistry

Wai-Kee Li

Gong-Du Zhou

Thomas Chung Wai Mak

Oxford University Press

This chapter starts off with an in-depth discussion on the angular and radial functions of the hydrogenic orbitals. Then the ground 1s 2 and the excited 1s 12s 1 configurations of the helium atom are employed to illustrate the determinantal wavefunction and the Pauli Exclusion Principle. Some simple trial wavefunctions for helium are introduced, with emphasis on the physical meaning of the adjustable parameters. For the many-electron atoms, the L-S and j-j coupling schemes are used to derive the spectroscopic terms arising from a given atomic configuration. Examples are then given to illustrate the correlation between the terms derived by these two schemes. The chapter concludes with a section on atomic properties, including ionization energy and electron affinity, electronegativity, relativistic effect on the properties of elements.

Keywords:   atomic orbitals, electron correlation, electronegativity, electronic configuration, Hund's rule, ionization energy, j-j coupling, Pauli Exclusion Principle, relativistic effect, Russell-Saunders coupling

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