释义 |
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 (-4) and SiO2 (+4) or of sulfur in H2S (-2) and H2SO4 (+6)] |