V2EX metal ion

Metal Ion

定义 Definition

金属离子:金属原子失去一个或多个电子后形成的带正电粒子(如 Na、Ca、Fe)。在化学、生物和材料科学中常见;部分金属也可形成阴离子型的“金属阴离子”,但最常见的是阳离子

发音 Pronunciation (IPA)

/mtl an/

例句 Examples

A metal ion like Na carries a positive charge.
像 Na 这样的金属离子带正电。

Metal ions can bind to proteins and change how an enzyme works, which is why magnesium ions are important in many biological reactions.
金属离子可以与蛋白质结合并改变酶的作用方式,这也是为什么镁离子在许多生物反应中很重要。

词源 Etymology

metal 来自古法语 metal,进一步可追溯到拉丁语 metallum(“矿、金属”)以及希腊语 metallon(“矿井、采矿”)。ion 来自希腊语 ion(“行进者”),与动词 ienai(“走”)相关,最初用于描述在电场中“移动”的带电粒子;“metal ion”即“金属形成的离子”。

相关词 Related Words

文学作品 Literary Works

  • Primo Levi《The Periodic Table》(《元素周期表》):以化学元素与化学经验串联叙事,涉及金属与离子等化学概念与语言。
  • Isaac Asimov《The Intelligent Man’s Guide to Science》(《阿西莫夫科学指南》):在通俗科学讲解中讨论原子、离子与电荷等基础概念,常出现“ion/metal ion”等术语。
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