All in all, in the l shell, I have the possibility of eight different configurations.

所以总的来说，在L层,总共可能有八种不同构型。

麻省理工公开课 - 固态化学导论课程节选

And, if we go to n equals two, this would be the l shell.

而当n等于2时，也就是L层。

麻省理工公开课 - 固态化学导论课程节选

So when we talk about p orbitals, it's similar to talking about s orbitals, and the difference lies, and now we have a different value for l, so l equals 1 for a p orbital, and we know if we have l equal 1, we can have three different total orbitals that have sub-shell of l equalling 1.

当我们考虑ｐ轨道时，这和ｓ轨道的情形和相似，不同之处在于ｌ的值不一样，对于ｐ轨道，ｌ等于１,我们知道如果ｌ等于１,我们有３个,不同的轨道。

麻省理工公开课 - 化学原理课程节选

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