V2EX aufbau-principle

Aufbau Principle

定义 Definition

构造原理(Aufbau principle):化学中用于预测原子基态电子排布的一条规则,意思是电子会优先填充能量较低的轨道,再逐步进入更高能量的轨道。(在实际情况下也有少数“例外”,如某些过渡金属的电子排布。)

发音 Pronunciation (IPA)

/afba prnspl/

例句 Examples

Electrons fill lower-energy orbitals first, according to the Aufbau principle.
根据构造原理,电子会先填充能量较低的轨道。

Using the Aufbau principle and Hund’s rule, we can predict the ground-state electron configuration of many atoms.
结合构造原理与洪特规则,我们可以预测许多原子的基态电子构型。

词源 Etymology

Aufbau来自德语,意为“建造、构造、逐步建立”;principle意为“原理、原则”。合起来就是“按能量从低到高逐步建立电子排布的原则”。该术语反映了早期量子化学与原子结构理论中德语学术传统的影响。

相关词 Related Words

文学与著作举例 Literary Works

  • Linus Pauling, The Nature of the Chemical Bond(《化学键的本质》)
  • Peter Atkins & Loretta Jones, Chemical Principles(《化学原理》)
  • Raymond Chang & Kenneth Goldsby, Chemistry(《化学》)
  • Ralph H. Petrucci et al., General Chemistry: Principles and Modern Applications(《普通化学:原理与现代应用》)
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