early 15c., "extract, preparation," from Latin valentia "strength, capacity," from valentem (nominative valens) "strong, stout, vigorous, powerful," present participle of valere "be strong" (see valiant). Meaning "relative combining capacity of an element" is recorded from 1884, from German Valenz (1868), from the Latin word. Related: Valency.
valence 英文释义
1. (biology) a relative capacity to unite or react or interact as with antigens or a biological substrate
2. (chemistry) a property of atoms or radicals; their combining power given in terms of the number of hydrogen atoms (or the equivalent)
valence 双语例句
1. Hydrogen is a one - valence element.
氢是一价的元素.
来自《现代汉英综合大词典》
2. Valence is a sleepy little town just south of Lyon.
瓦朗斯是里昂南面一座寂静的小镇。
来自辞典例句
3. Every element tends to satisfy both its primary and secondary valence.
每一元素倾向于既满足它的主价又要满足它的副价.
来自辞典例句
4. A closely related concept is that of free valence.
一个密切有关的概念是自由价.
来自辞典例句
5. The valence atom of an alkali - metal atom has two states.
碱金属原子的价原子具有两种能态.
来自辞典例句
valence 实用场景例句
Hydrogen is a one - valence element.
氢是一价的元素.
《现代汉英综合大词典》
Valence is a sleepy little town just south of Lyon.
瓦朗斯是里昂南面一座寂静的小镇。
辞典例句
Every element tends to satisfy both its primary and secondary valence.
每一元素倾向于既满足它的主价又要满足它的副价.
辞典例句
The valence atom of an alkali - metal atom has two states.
碱金属原子的价原子具有两种能态.
辞典例句
The secondary valence is directed toward fixed positions in space.
副介指向空间的确定位置.
辞典例句
Halogen atoms contain seven electrons in their valence shell.
卤原子在它们的介电子层含有七个电子.
辞典例句
The outer ring contains the valence electrons.
排在外层的有价电子.
辞典例句
Carbon has a valence of four.
碳的化合价是四价.
辞典例句
When it is in this condition, the atom is said to be in a valence state.
当它处于这种状态时, 这个原子就可说是处于价态.
辞典例句
In the preceding section we discussed the valence bond ( VB ) or electron - pair theory of bonding.
在前面一节,我讨论了价键法——电子配对理论.
辞典例句
Halogen atoms contain seven electrons in their valence shell, and , consequently, are monovalent.
卤原子在它们的价电子层含有七个电子, 因此是一价的.
辞典例句
In the valence bond treatment , explicit recourse is made to classical, localized bond structure.
价键法明显依赖经典的定域结构.
辞典例句
Two shared valence electrons forming a bond between adjacent nuclei.
形成电子核子之间的键的两个共享原子价电子.
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Elements 3 is a nonmetal with one valence electron.
元素3是带-1价的非金属元素.
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Tungstate ions were reduced to oxide with intermediate valence.
