Periodic Table
T-Shirts & more
from the

Merch Store

previous home next

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:       

Year:  2012 PT id = 765

Ato Circular Periodic Table by Ramanpreet Singh Jandu

Ramanpreet Singh Jandu writes:

"The present invention relates to a device for the understanding of the periodic table and the structure of the atom together in a better way.

The device consists of seven concentric circular disks rotatable about their centre, wherein the size of the disks increases from the centre to the end like that in the structure of the atom.

Each disk is marked so as to form the sub-blocks and each disk in itself represents the periods of the periodic table.

The disks are divided into sub-blocks and labeled with elements at back side as well.

Thus the Ato Circular Periodic Table, as the name suggests, is the combination of atomic structure of the atom and that of the periodic classification of the elements."

Read more in the pdf file which describes the new formulation in detail.

Top of Page

previous home next
What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –

Queries, Suggestions, Bugs, Errors, Typos...

If you have any:

Suggestions for links
Bug, typo or grammatical error reports about this page,

please contact Mark R. Leach, the author, using

This free, open access web book is an ongoing project and your input is appreciated.