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Fig. 11.1 An attempted system of the elements based on their atomic weight and chemical
analogies. A pamphlet with D. Mendeleev
s first periodic system, distributed on the 17th of
'
February 1869
chemists of that time (Figs. 11.1 and 11.2 ). 5 The flyer was entitled An Attempted
System of the Elements Based on Their Atomic Weight and Chemical Analogies and
was signed by the 35 year old professor, D. Mendeleev (
), who at that
time was holding the chair of general chemistry at the renowned university of
St. Petersburg (Fig. 11.3 ). The whole set of chemical elements had been logically
laid down in 6 columns of increasing atomic weight and 19 rows of natural groups, 6
thus constituting the very first embodiment of the periodic law .
Д
.
Менделеев
5 Mendeleev, D. I. “An Attempted System of the Elements Based on Their Atomic Weights and
Chemical Analogies.” 1869a. A total of two hundred single page copies were printed—150 in
Russian (Fig. 11.1 ), and another 50 in French (Fig. 11.2 ). See Krotikov, V. A. “The Mendeleev
Archives and Museum of the Leningrad University.” Journal of Chemical Education 37, no.
12 (1960): 627.
6 Examples of natural groups (i.e. elementary groups) are the alkaline metals and the halogens.
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