"You create the world of the dream. We bring the subject into that dream and they fill it with their subconscious."

VOA: standard.2010.07.16

So carbon has four valence electrons, so if we talk about c 2, again we're going to start filling in our molecular orbitals, and now we're going to have eight electrons to fill into our molecular orbitals.

碳有4个价电子，所以如果我们考虑C2的话，同样，我们开始填分子轨道，现在我们有8个电子,要填入分子轨道。

麻省理工公开课 - 化学原理课程节选

So what we need to do is fill in those extra bonding electrons into our bonds.

因此我们需要,把这些电子也填到键中。

麻省理工公开课 - 化学原理课程节选

And then this means we'll have a total of sigma1s two electrons in our hydrogen molecule, so we can fill both of those into the sigma 1 s orbital, the bonding orbital. We don't have to put anything into the anti-bonding orbital, so that's great.

我们可以把这两个,都填入，轨道里去，成键轨道,我们不需要把什么放到反键轨道里去，这很好。

麻省理工公开课 - 化学原理课程节选