Professor Irvine-Halliday used a one-watt bright white L.E.D.

VOA: special.2009.12.21

So if we compare l increasing here, so a 3 s to a 3 p to a 3 d, what we find is that it's only in the s orbital that we have a significant probability of actually getting very close to the nucleus.

我们比较当ｌ变大的时候，从３ｓ到３ｐ到３ｄ,我们可以发现只有ｓ轨道,有很大的概率,非常接近原子核。

麻省理工公开课 - 化学原理课程节选

So if we have a 3 d orbital, we're talking about n minus l minus 1, what is n equal to? What is l equal to?

如果我们有一个3d轨道，我们用ｎ减去ｌ减去１,ｎ等于多少？ｌ等于多少？

麻省理工公开课 - 化学原理课程节选