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 Rutherfordium
Rutherfordium, atomic number 104, has a mass of 267 au.
Synthetic radioactive element.
Rutherfordium was first observed in 1969 by A. Ghiorso et al. and I. Zvara et al.
© Mark R. Leach 1999-
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
This free, open access web book is an ongoing project and your input is appreciated.