- Abegg's rule
- s.regla de Abegg.
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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's rule — ˈäˌbegz , eks noun Usage: capitalized A Etymology: after Richard Abegg died 1910 German chemist : a rule in chemistry: the sum of the hydrogen valence and the maximum oxygen valence of a chemical element is often equal to 8 [as of silicon in SiH4 … Useful english dictionary
Abegg's rule — Empirical rule that the solubility of salts of alkali metals with strong acids decreases from lithium to caesium, i.e., with increase of relative atomic mass, and those with weak acids follow the opposite order. Sodium chloride is an exception to … Dictionary of automotive terms
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 … Dictionary of automotive terms
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
Abegg — Richard, Danish chemist, 1869–1910. See A. rule … Medical dictionary
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
Richard Abegg — Infobox Scientist name = Richard Abegg caption = Richard Wilhelm Heinrich Abegg (1869 1910) birth date = birth date|1869|1|9|mf=y birth place = Danzig, Germany residence = Germany nationality = German death date = death date and… … Wikipedia
Octet rule — The bonding in carbon dioxide (CO2): all atoms are surrounded by 8 electrons, fulfilling the octet rule. The octet rule is a chemical rule of thumb that states that atoms of low (<20) atomic number tend to combine in such a way that they each… … Wikipedia
Loi d'Abegg pour la valence et contre-valence — Loi d Abegg En chimie, la loi d Abegg indique que la différence entre le maximum positif de valence et le maximum négatif d un élément est fréquemment huit. En général, pour un élément donné (comme le soufre), la loi d Abegg indique que la somme… … Wikipédia en Français