V2EX anion

Anion

释义 Definition

阴离子:带负电荷的离子,通常由原子或分子获得电子形成。(在化学、电化学与生物体液中很常见。)

发音 Pronunciation

/n.a.n/

例句 Examples

An anion has a negative charge.
阴离子带负电荷。

In salt water, chloride is an anion that helps the solution conduct electricity.
在盐水中,氯离子是一种阴离子,能帮助溶液导电。

词源 Etymology

anion来自希腊语 anion,意为“向上走的(东西)”,源自动词 ienai(“走”)。早期电解研究中,用它指在电场作用下向阳极(anode)移动的离子;这些离子通常带负电,因此在现代化学中就固定为“阴离子”。

相关词 Related Words

文学作品中的用例 Literary Works

  • Michael Faraday, Experimental Researches in Electricity(法拉第《电学实验研究》)
  • Linus Pauling, The Nature of the Chemical Bond(林纳斯鲍林《化学键的本质》)
  • Peter Atkins, Physical Chemistry(阿特金斯《物理化学》)
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