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The 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: Mark R. Leach Ph.D.

Use the drop menus below to search & select from the more than 1300 Period Tables in the database: 

  Text Search:       

Periodic Tables from the year 1902:

1902   Brauner's Table
1902   Erdmann's Spiral Table
1902   Blitz's Periodensystem der Elemente
1902   Discovery of Actinium

Year:  1902 PT id = 58

Brauner's Table

From Quam & Quam's 1934 review paper.pdf

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Year:  1902 PT id = 71

Erdmann's Spiral Table

From Quam & Quam's 1934 review paper.pdf

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Year:  1902 PT id = 365

Blitz's Periodensystem der Elemente

Periodic Table of Biltz (1902) with an intraperiodic accommodation of the rare earths. Reproduced from Biltz, H., 1902. Ber. 35 (562), 4242:

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Year:  1902 PT id = 869

Discovery of Actinium


Actinium, atomic number 89, has a mass of 227 au.

Radioactive element.

Actinium was first isolated in 1902 by F. O. Giesel.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

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