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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 1100 Period Tables in the database:

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2018

IUPAC Periodic Table of The Elements

The 1 Dec 2018 IUPAC (International Union of Pure and Applied Chemistry) Periodic Table of The Elements. For updates to this table click here.

By virtue of its work in relation with the chemical elements, IUPAC can dispense a periodic table that is up-to-date. IUPAC involvement covers various aspects of the table and data that it unveils, and several reports and recommendations, some quite recent, attest of that input. In particular, IUPAC is directly involved in the following:

  1. establishing the criteria for a new element discovery
  2. defining the structure of a temporary name and symbol
  3. assessing claims resulting in the validation and assignation of an element discovery
  4. coordinating the naming of a new element, involving the research laboratory and allowing for public comments
  5. setting up precise rules for how to name a new element
  6. defining Group 1-18 and collective names
  7. determining which elements belong to Group 3
  8. regularly reviewing standard atomic weights

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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