Internet Database of Periodic Tables
There are thousands 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.
Use the buttons below to select from the 1000+ Periodic Tables in the database:
Discovery of Lutetium
Lutetium, atomic number 71, has a mass of 174.967 au.
Lutetium was first isolated in 1906 by C. A. von Welsbach and G. Urbain.
Chronology of chemically the splitting of yttria (mixed oxides) into the pure rare-earth metals:
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
© Mark R. Leach 1999-
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