V2EX aufbau principle

Aufbau Principle

释义 Definition

“构造原理/填充原理”:在原子基态中,电子会优先填入能量最低的轨道,然后再依次填充更高能量的轨道(常与 n + l 规则等一起使用)。该词组主要用于化学与原子物理语境。

发音 Pronunciation (IPA)

/afba prnspl/

例句 Examples

Electrons fill the lowest-energy orbitals first according to the Aufbau principle.
电子会按照构造原理先填入能量最低的轨道。

Using the Aufbau principle, Hund’s rule, and the Pauli exclusion principle, we can write the ground-state electron configuration of iron.
结合构造原理、洪特规则与泡利不相容原理,我们可以写出铁的基态电子排布。

词源 Etymology

Aufbau 来自德语,意为“建造、逐步构建”。在原子结构理论中,它形象地表达了电子排布像“搭积木”一样从低能级向高能级逐步填充的思想;principle 表示“原理、原则”。

相关词 Related Words

文学与经典著作 Literary Works

  • General Chemistry(Linus Pauling)
  • Chemistry(Raymond Chang)
  • Chemistry: The Central Science(Brown, LeMay 等)
  • Atkins’ Physical Chemistry(Atkins, de Paula 等)
  • Introduction to Quantum Mechanics(David J. Griffiths, Darrell F. Schroeter)
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