Periodic Table |
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| 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 1977 :
| 1977 | CRC Handbook Periodic Table of The Elements |
| 1977 | Ambrosis' Clasification Periodica de los Elementos |
| Year: 1977 | PT id = 442, Type = formulation |
CRC Handbook Periodic Table of The Elements
From the 58th Edition of the CRC Handbook of Chemistry and Physics:

| Year: 1977 | PT id = 754, Type = formulation |
Ambrosis' Clasification Periodica de los Elementos
By Dr Raúl Julio Ambrosis, who taught Chemistry at the National University of La Plata in Argentina. The source is the Clasificación Periódica de los Elementos, Buenos Aires, Ediciones Marymar, 1977.
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| What is the Periodic Table Showing? | Periodicity |
© Mark R. Leach Ph.D. 1999 –
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