Internet Database of Periodic Tables
There are thousands of periodic tables in web space, but this is the only 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 Rubidium
Rubidium, atomic number 37, has a mass of 85.468 au.
Rubidium is a Group 1 element, and these are often referred to as the "alkali metals".
Rubidium was first observed, but not isolated in pure form, in 1861 by R. Bunsen and G. R. Kirchhoff.
© Mark R. Leach 1999-
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