英语单词
valence是什么意思
valence
英 ['veɪl(ə)ns]
美 ['veləns]
- n. [化学] 价；[化学] 原子价；[化学] 化合价；效价
- n. (Valence)人名；(法)瓦朗斯
助记提示
1、val- "be strong" + -ence.
2、字面含义：strength, capacity, combining power of an element.
3、化学里面的“价”好像就是容纳电子的能力、本领吧。
2、字面含义：strength, capacity, combining power of an element.
3、化学里面的“价”好像就是容纳电子的能力、本领吧。
英文词源
- valence (n.)
- 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.
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