- Abegg's rule of eight
- A rule that the sum of the maximum positive and negative valencies of an element is eight, e.g., sulphur in SF6 and H2S.
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Abegg's rule of eight
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Abegg's rule — ä .begz , .beks n a rule in chemistry: for a given chemical element (as sulfur) the sum of the absolute value of its negative valence of maximum absolute value (as 2 for sulfur in H2S) and its positive valence of maximum value (as +6 for sulfur… … Medical dictionary
Abegg's rule — In chemistry, Abegg’s rule states that the difference between the maximum positive and negative valence of an element is frequently eight. In general, for a given chemical element (as sulfur) Abegg’s rule states that the sum of the absolute value … Wikipedia
Abegg , Richard — (1869–1910) German physical chemist Abegg was born in the German port of Danzig (now Gdańsk in Poland); he studied chemistry at Kiel, Tübingen, and Berlin. He graduated in 1891 as a pupil of Wilhelm Hofmann. Initially an organic chemist, he was… … Scientists
rule — A criterion, standard, or guide governing a procedure, arrangement, action, etc. SEE ALSO: law, principle, theorem. [O. Fr. reule, fr. L. regula, a guide, pattern] Abegg r. the tendency of the sum of the … Medical dictionary
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