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单词 abegg's rule
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)]
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更新时间:2024/9/22 3:38:08