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The INTERNET Database of Periodic Tables


There are hundreds of periodic tables in web space, but there is only one comprehensive database of periodic tables & periodic system formulations. If you know of an interesting periodic table that is missing, please contact the database curator: Dr Mark R Leach.

pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables


1831

Daubeny's Teaching Display Board of Atomic Weights

The Museum of the History of Science, Oxford, has a display of Charles Daubeny's teaching materials from 1831, including a black painted wooden board with "SYMBOLS OF SIMPLE BODIES": symbols, atomic weights and names of elements in two columns, and a small pile of cubes with element symbol.

Note that some of the numbers seem very strange to our eyes: carbon is given as 6 (rather than 12) and oxygen 8 (not 16), while others correspond with modern values remarkably well, chlorine is given as 36 rather than 35.5.

Daubeny's weights (along with the modern mass) are given:

Daubeny's SYMBOLS OF SIMPLE BODIES (1831)
O 8 (16.0) Oxygen K 40 (39.1) Potassium
Cl 36 (35.5) Chlorine Na 24 (23.0) Sodium
Fl 19 (19.0) Fluorine Ca 20 (40.1) Calcium
B 80 (79.9) Bromine Mg 12 (24.3) Magnesium
I 124 (127) Iodine Si 8 (28.1) Silicon
H 1 (1.01) Hydrogen Al 10 (27.0) Aluminium
N 14 (14.0) Nitrogen Fe 28 (55.8) Iron
C 6 (12.0) Carbon Cu 64 (63.5) Copper
S 16 (32.1) Sulphur Pb 104 (207) Lead
P 16 (31.0) Phosphorus Hg 200 (200.6) Mercury

Check out the virtual tour of the museum, here. The display of Daubeny's teaching materials can be found in the basement, here.

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pre 1900 formulations 1900 to 1949 formulations 1950 to 1999 formulations 2000 to 2009 formulations Spiral formulations 3 dimensional formulations
Data mapping periodic tables Miscellaneous periodic tables Books and reviews non-chemistry periodic tables All periodic tables

 

 


Periodic Table, What is it showing?
Binary Compounds

© Mark R. Leach 1999-


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