Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版:英文原文完整保留,中文紧随对应单元;术语采用 v20260916 确认表,自动语义审校结果可追溯。

Carbon Energy Levels

碳能级

after Rohlf.

The ground state electron configuration of carbon is 1s22s22p2. For excited states, the most typical situation is that five of the electrons maintain the configuration 1s22s22p1 and a single electron is elevated. The states in the above diagram use the spectroscopic notation to characterize the state of that one electron. However, three of the levels in the diagram have the configuration 1s22s12p3 and are denoted 2p3.

碳的基态电子构型是 1s² 2s² 2p²。对于激发态,最典型的情况是五个电子保持构型 1s² 2s² 2p¹,而一个电子被激发。图中所示的态使用光谱符号来描述那个电子的状态。然而,图中三个能级具有构型 1s² 2s¹ 2p³,并被表示为 2p³。

The lines connecting levels indicate radiative transitions, which are subject to selection rules depending upon the angular momenta.

连接各能级的线条表示辐射跃迁,这些跃迁受角动量的选定点规则制约。
Electron energy level diagrams
电子能级图
参照Rohlf的资料
Index

Reference
Rohlf
Ch 9
索引参考Rohlf第9章
 
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