So, electron promotion does not happen in terms of nitrogen, because it would not increased our number of unpaired electrons.

这里对于氮原子不会有电子激发，因为这不会增加,未配对电子的数目。

麻省理工公开课 - 化学原理课程节选

Maybe at work, you received a promotion offer.

比如，在工作中，你收到了一个升职的通知书。

I'm sure 课堂 - SpeakingMax英语口语达人

No matter what we do in terms of promotion, we're always going to have three unpaired electrons.

不管我们怎么激发，我们总有3个未配对的电子。

麻省理工公开课 - 化学原理课程节选

Would you expect to see electron promotion for boron?

它有3个价电子？

麻省理工公开课 - 化学原理课程节选

And we can think about here we did get that energy for electron promotion that I mentioned before 2p where we moved the electron from the 2 s to the 2 p.

我们可以考虑,我们从哪里,获得了能量使电子,从2s激发到。

麻省理工公开课 - 化学原理课程节选

Would you expect to see electron promotion in nitrogen where we pull one of these 2 s electrons into one of the 2 p orbitals?

你们觉得会看到电子激发吗？,1个2s电子,跑到2p轨道里？

麻省理工公开课 - 化学原理课程节选