Chemistry: Matter and Change

Periodic Table Links

Element 111 is named!
Roentgenium (Rg) officially approved as the name of Element 111 on November 1, 2004.
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The Periodic Table
This version of the periodic table is based on the 1990 IUPAC Nomenclature of Inorganic Chemistry.
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Research News
This article from July 27, 2001 details the retraction of the discovery of element 118. After reading this article, why do you think it is so important to be able to reproduce the results of a valid experiment?
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This site provides current information on the periodic table. Click on any element to learn more about it. Read the notes at the bottom of the page for the latest developments concerning the periodic table.
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