Periodic Table |
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.
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Periodic Tables from the year 1954:
Year: 1954 | PT id = 628, Type = formulation |
Sanderson's "One More" Periodic Table
From Sanderson's paper: One More Periodic Table (J. Chem. Educ., 1954, 31 (9), p 481):
Year: 1954 | PT id = 922, Type = formulation 3D |
Sabo & Lakatosh's Volumetric Model of the Periodic Table
From the Russian Book: 100 Years of Periodic Law of Chemical Elements, Nauka 1969, p.87.
The caption says: "Volumetric Model of 18-period Long System of D.I.Mendeleev." after Sabo and Lakatosh (1954).
Thanks to Larry T for the tip!
Year: 1954 | PT id = 1255, Type = formulation |
Ephraim's Periodic Classification
Ephraim F 1954, Inorganic Chemistry, 6th ed., Oliver and Boyd, London (revised by PCL Thorne and ER Roberts)
René Vernon writes that items of interest include:
- The position of H "Which [according to Ephraim] is difficult to place in this table in a satisfactory manner", outside of the main body of the periodic table, "remote from both Li and F, well removed from C, and above He and the inert gases"
- The old school location of B-Al in Group IIIa
- C-Si belong to both Ti-Zr-Hf-Th and Ge-Sn-Pb
Year: 1954 | PT id = 1317, Type = formulation |
New Periodic Table of the Elements Based on the Structure of the Atom
Tomkeieff SI, 1954, A New Periodic Table of the Elements Based on the Structure of the Atom, Chapman & Hall, London.
Thanks to René Vernon for the tip, who writes:
It is a helix wrapped on the surface of a cone. The shadow on the left is from the edge of my hand holding down the table; the shadow on the right is from the edge of a different book, again used to hold down the table into some semblance of flatness.
Mazurs said: "This is not a very successful table".
First, there is the cumbersome nature of a table on a cone, Secondly, see how the eight main group numbers at the top are sort of mushed into the 18 A and B series group numbers. This does not work well.
The colour scheme shows the dominant acid-base properties of the elements:
Dark blue — strong bases
Light blue — weak bases
Light red — weak acids
Dark red — strong acids
White — Inert gasesSince nonmetals never form basic oxides it is interesting to note that the (23) nonmetals fall on the right side of the table:
H He
B C N O F Ne
Si P S Cl Ar
Ge As Se Br Kr
Sb Te I Xe
Rn[Water is amphoteric; hydrogen peroxide is weakly acid.]
While the underlined elements are sometimes called metalloids, it is has been known for over 100 years that metalloids predominately behave chemically like nonmetals.
Astatine would’ve been a nonmetal but for relativistic effects. Immediately following its production in 1940, early investigators considered it a metal.
What is the Periodic Table Showing? | Periodicity |
© Mark R. Leach Ph.D. 1999 –
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