V2EX covalent

Covalent

定义 Definition

“covalent” 指“共价的”:描述原子通过共享电子对而形成的化学键(共价键),常见于非金属元素之间的成键方式。

发音 Pronunciation (IPA)

/kovelnt/

例句 Examples

A covalent bond forms when two atoms share electrons.
共价键在两个原子共享电子时形成。

Water has covalent bonds between hydrogen and oxygen, giving it unique properties like high boiling point and surface tension.
水分子中氢与氧之间是共价键,这使它具有较高沸点和表面张力等独特性质。

词源 Etymology

“covalent” 来自前缀 **co-**(表示“共同、一起”)与 valent(源自拉丁语 valere,“有力量、起作用”,在化学中引申为“化合价/成键能力”)。整体含义可理解为“共同成键(共同使用价电子)”。

相关词 Related Words

文学作品 Literary Works

  • Linus Pauling The Nature of the Chemical Bond(《化学键的本质》)
  • Isaac Asimov Asimov’s Guide to Science(《阿西莫夫科学指南》)
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