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 Lawrencium
Lawrencium, atomic number 103, has a mass of 262 au.
Synthetic radioactive element.
Lawrencium was first observed in 1961 by A. Ghiorso, T. Sikkeland, E. Larsh and M. Latimer.
© Mark R. Leach 1999-
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