V2EX polyatomic ion

Polyatomic Ion

释义 Definition

多原子离子:由两个或以上原子通过共价键结合在一起,并作为一个整体带有净电荷的离子。常见于盐类、酸碱反应与溶液化学中。(注:也存在单原子离子 monatomic ion。)

发音 Pronunciation (IPA)

/plitmk an/

例句 Examples

A sulfate ion is a polyatomic ion.
硫酸根离子是一种多原子离子。

When balancing the equation, treat the polyatomic ion as a single unit if it stays unchanged.
配平方程时,如果多原子离子在反应中保持不变,可以把它当作一个整体来处理。

词源 Etymology

poly- 源自希腊语,意为“多”;atomic 来自“atom(原子)”;ion 源自希腊语 ienai(“走/移动”),指在电场中能移动、带电的粒子。合起来即“由多个原子组成并带电的离子”。

相关词 Related Words

文献与作品 Literary / Notable Works

  • Chemistry: The Central Science(Brown, LeMay 等)在离子化合物与溶液章节中系统讨论多原子离子(如硝酸根、硫酸根等)。
  • Zumdahl’s Chemistry(Zumdahl)在化学式命名、酸碱与化学计量部分频繁使用“polyatomic ion”概念。
  • General Chemistry(Linus Pauling)在基础无机化学与化学键讨论中提及常见多原子离子的结构与性质。
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