Original scientific paper
https://doi.org/10.15255/KUI.2015.012
History of Chemistry and Chemical Engineering:
Theories of the Chemical Bond in Croatian Textbooks
Nenad Raos
; Institute for Medical Research and Occupational Health Ksaverska c. 2, P.O.B. 291, 10 001 Zagreb, Croatia
Abstract
There are two basic theories of chemical constitution; the first starts from stoichiometry (“chemical structure”), and the second from the structure of the atom (“physical structure”). In Croatian textbooks, constitution and valence of the elements were not interpreted “physically” until 1947, when the first university and the first high-school textbook with electronic Lewis formulas appeared. The late appearance of “physical structure” in Croatian textbooks – 31 years after Lewis’s first paper on the chemical bond (1916) and 14 years after the publication of his book “Valence and the Structure of Atoms and Molecules” (1923), could be explained by the hypothesis that Croatian authors were not inspired by Lewis’s work, but rather with Pauling’s textbook “The Nature of the Chemical Bond” (1939). The second factor was World War II in Croatia (1941–1945), which delayed innovations in the teaching of chemistry.
Keywords
history of chemistry; teaching of chemistry; structural formulas; constitution of molecules
Hrčak ID:
154250
URI
Publication date:
23.3.2016.
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