Icon of Chemistry: The Periodic System of Chemical Elements in the New Century

A closer look: A deeper theoretical understanding of the multifaceted periodic system of elements (PSE) has been achieved in recent years. The large energy gaps above the noble gas shells 1s² and np⁶ (n=2-6) impress periodicity onto the whole PSE, which is complete with Period 7. The electron config...

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Bibliographic Details
Published in:Angewandte Chemie (International ed.) 2009-04, Vol.48 (19), p.3404-3415
Main Authors: Wang, Shu-Guang, Schwarz, W.H. Eugen
Format: Article
Language:English
Subjects:
atoms
electronic structure
elements
orbitals
periodic system
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Summary:A closer look: A deeper theoretical understanding of the multifaceted periodic system of elements (PSE) has been achieved in recent years. The large energy gaps above the noble gas shells 1s² and np⁶ (n=2-6) impress periodicity onto the whole PSE, which is complete with Period 7. The electron configurations of unbound atoms are chemically misleading. The common n+l rule is an example of the "invention of facts" even in the hard sciences.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200800827