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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:

Text search:       


Periodic Table formulations from the year 1999:

1999   Moran's Spiral Periodic Table
1999   Trapp's Development of the Periodic Chart
1999   Rejected Elements Periodic Table
1999   Cognitive Elements, Periodic Table of
1999   Star Trek Periodic Tables
1999   Nations, Periodic Table of
1999   Discovery of Flerovium


1999

Moran's Spiral Periodic Table

Jeoff Moran's spiral periodic table can be found at periodicspiral.com.

See an article in the New York Times:

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1999

Dave Trapp' Development of the Periodic Chart

Dave Trapp has an excellent discussion of the development of the periodic table on his Development of the Periodic Chart pages, part of his Sequim Science web site.

Dave Trapp also has a web site dealing with the origin of the names of the elements:

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1999

Rejected Elements

The periodic table of rejected elements by Michael Gerber and Jonathan Schwarz, here:

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1999

CHC Gf-Gc Periodic Table of Cognitive Elements

The Kevin McGrew CHC Gf-Gc Periodic Table of Cognitive Elements:

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1999

Star Trek Periodic Tables

Three Star Trek inspired Periodic Tables:

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1999

Nations, Periodic Table of

A Periodic Table of Nations by Tony Goodman. Click here to enlarge.

Periodic Table of Nations

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1999

Discovery of Flerovium

Fl

Flerovium, atomic number 114, has a mass of 289 au.

Synthetic radioactive element.

Flerovium was first observed in 1999 by Y. Oganessianet et al.

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What is the Periodic Table Showing? Periodicity

© Mark R. Leach Ph.D. 1999 –


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