The Chemical Educator

, Volume 6, Issue 6, pp 324–332 | Cite as

The Periodic Table: An Eight Period Table For The 21st Centrury

  • Gary KatzEmail author
In the Classroom


Throughout most of the 20th century, an eight-period periodic table (also known as an electron-configuration table) was offered as an improvement over the ubiquitous seven-period format of wall charts and textbooks. The eight-period version has never achieved wide acceptance although it has significant advantages. Many observers have questioned the way helium is displayed in this format. Now, a reinterpretation of the relationship of the first-period elements to successive elements may help make the eight-period table an attractive choice for the 21st century.


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Copyright information

© Springer-Verlag New York, Inc. 2001

Authors and Affiliations

  1. 1.Periodic RoundtableCabot

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