And we do so by a quantity called the average valence electron energy.

我们可以通过,一个叫做平均价电子能的量来解决这一问题。

麻省理工公开课 - 固态化学导论课程节选

But you can also look at it qualitatively, so, if you think about the force between the electron and the proton, you could just qualitatively think about what's happening.

但你也可以定性的来研究这个问题，所以如果你们考虑电子,和质子之间的作用力,你可以定性的来想。

麻省理工公开课 - 化学原理课程节选

And, he asked the question, what if we could share -electrons?

他问了一个问题，如果共享电子会怎么样呢？

麻省理工公开课 - 固态化学导论课程节选

You received an email if you were on the class list yesterday from Christina that talked about the class assignments, and how they'll be handled by the various teaching fellows.

昨天上课的同学,都收到了克里斯蒂娜发送的电子邮件,讲的是课程作业的问题,以及不同的助教对此的处理方式

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So, I know this is a simple example and I can see everyone pretty much got it right, and probably those that didn't actually made some sort of clicker error is my guess.

分别是质子和电子,我知道这是个很简单的问题，你们大部分人都做对了,我猜那些没做对的大概是因为点错了。

麻省理工公开课 - 化学原理课程节选

So, you might have noticed that we will have spent about 6 and 1/2 lectures just getting to the point where we have only one electron, so we're only up hydrogen so far.

你们可能已经注意到了,我们已经花了６周半的时间,来仅仅是讲到单电子问题的情形，我们现在只研究氢原子。

麻省理工公开课 - 化学原理课程节选

So now we can go back and think about filling in these electron configurations for any atom.

实用现在我们返回来再考虑,关于填充任意原子,电子构型的问题。

麻省理工公开课 - 化学原理课程节选

So, let's write this one electron orbital approximation for berylium, that sounds like a pretty complicated question, but hopefully we know that it's not at all, 1s22s2 it's just 1 s 2, and then 2 s 2.

所以让我们写出,铍的单电子轨道近似，那听起来像是一个更为复杂的问题，但是希望我们知道它一点都不是，它仅仅是。

麻省理工公开课 - 化学原理课程节选

To answer this question you just really want to think about what does electron affinity means.

要想答对这个问题,你只需要好好想一想,电子亲和能的真正意义。

麻省理工公开课 - 化学原理课程节选

All right, so today we're going to fully have our discussion focused on multi-electron atoms.

好了，今天我们将要完整的讨论,关于多电子原子的问题。

麻省理工公开课 - 化学原理课程节选

This is the Hund Rule and it explains electron occupancy.

这就是洪特定律,它解释了电子分布问题。

麻省理工公开课 - 固态化学导论课程节选

So here is where our question comes, because where do we put it?

这里我们的问题就来了，我们该把这两个电子放在哪里？

麻省理工公开课 - 化学原理课程节选

The same thing when you're going from filling in the 2 s to putting that first electron into the 2 p.

当你填满，2，s，后再往，2，p，中,放第一个电子的时候就会发生这种问题。

麻省理工公开课 - 化学原理课程节选

If you see a problem that asks you, for example, the third ionization energy versus taking a second electron out of the 2 s in a photoelectron spectroscopy experiment, those are two very different things.

如果你遇到一个题目问你的是，比如说，是第三电离能,还是在光电子能谱实验中从，2，s，轨道中,拿走第二个电子，这可是两个完全不同的问题。

麻省理工公开课 - 化学原理课程节选