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pre 1900 formulations
1900 to 1949 formulations
1950 to 1999 formulations
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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.

pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables


2008

Wheel Structure Periodic Table

From the Science Photo Library, a computer illustration representing the periodic table of the elements as a wheel structure.

  • The radiating spokes are the groups and are colour coded.
  • The heights of the columns represent the elements' atomic numbers, being the numbers of protons in their nuclei. The elements in any one group share many chemical and physical properties.
  • At the wheel's centre is the first element, hydrogen, (H, white).
  • At the end of each spoke, the elements are unnamed, and only their atomic numbers are shown, from 110-120.
  • The transition elements (upper left, orange) and the Lanthanides and Actinides (upper right) are blocks of elements with predictably varying properties.

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables

 

 


Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


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