Periodic Table |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
![]() |
| What is the Periodic Table Showing? | Periodicity |
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. The database holds information on periodic tables, the discovery of the elements, the elucidation of atomic weights and the discovery of atomic structure (and much, much more).
Periodic Tables from the year 1999 :
| Year: 1999 | PT id = 36, Type = formulation spiral |
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:
| Year: 1999 | PT id = 108, Type = review |
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:
| Year: 1999 | PT id = 150, Type = non-chem |
Rejected Elements
The periodic table of rejected elements by Michael Gerber and Jonathan Schwarz, here:
| Year: 1999 | PT id = 332, Type = non-chem |
CHC Gf-Gc Periodic Table of Cognitive Elements
The Kevin McGrew CHC Gf-Gc Periodic Table of Cognitive Elements:
| Year: 1999 | PT id = 526, Type = non-chem |
Star Trek Periodic Tables
Three Star Trek inspired Periodic Tables:



| Year: 1999 | PT id = 702, Type = non-chem |
Nations, Periodic Table of
A Periodic Table of Nations by Tony Goodman. Click here to enlarge.
| Year: 1999 | PT id = 894, Type = element |
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.
![]() |
![]() |
![]() |
| What is the Periodic Table Showing? | Periodicity |
© Mark R. Leach Ph.D. 1999 –
Queries, Suggestions, Bugs, Errors, Typos...
If you have any:
Queries
Comments
Suggestions
Suggestions for links
Bug, typo or grammatical error reports about this page,please contact Mark R. Leach, the author, using mark@meta-synthesis.com
This free, open access web book is an ongoing project and your input is appreciated.











