The INTERNET Database of Periodic Tables
There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.
Chronology of Splitting The Rare Earths: "Ceria" & "Yttria"
Chronology of the splitting of "ceria" (mixed oxides) in the different composing rare-earth elements:
Chronology of the splitting of "yttria" (mixed oxides) in the different composing rare-earth elements:
From: CRC Handbook on the Physics and Chemistry of Rare Earths, Chapter 248. Accommodation of the Rare Earths in the Periodic Table: A Historical Analysis by Pieter Thyssen and Koen Binnemans (ISBN: 978-0-444-53590-0)
© Mark R. Leach 1999-
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