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

✍ Scribed by Shu-Guang Wang; W. H. Eugen Schwarz

Publisher
John Wiley and Sons
Year
2009
Tongue
English
Weight
613 KB
Volume
48
Category
Article
ISSN
0044-8249

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✦ Synopsis

Abstract

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 1s^2^ and __n__p^6^ (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.magnified image

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