The INTERNET Database of Periodic Tables
There are hundreds of periodic tables in web space, but there is only one 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.
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.
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