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And we put up this hypothesis that our observation is that octet stability seems to be an attractive electron configuration.
我们把假设置于我们的观察之上,即8电子稳定体系,似乎是一种吸引人的电子图像。
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So let's figure out the bond order for our two molecules here that we figured out the electron configuration for.
让我们看看这里,两个分子的键序是多少。
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ns2p6 And,electron configuration is always ns2p6.
而且，电子构造总是。
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if we're actually thinking about electron configuration and we look at lithium, sodium and potassium, these all have one valence electron.
让我们来想一想,锂，钠，钾的电子排布，它们都只有一个价电子。
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So here's the pneumonic I mentioned for writing the electron configuration and getting those orbital energies in the right order.
这里是我提到的,对于写电子构型,和以正确的顺序得到轨道能量。
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So, selenium 2 minus is what's going to be isoelectronic, because if you add two electrons to selenium, you'll get the same electron configuration that you have for krypton here.
负二价的硒离子将是等电子的，因为如果你给硒原子加上两个电子，你会得到,和氪原子相同的电子排布。
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So let's do this considering, for example, what it would look like if we were to write out the electron configuration for oxygen where z is going to be equal to 8.
我们来做这个考虑，举例来说,如果我们写出,有效电荷量为8的氧的电子构型。
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And the reason that we use it is that it is incredibly accurate, and allows us to very, very quickly predict and to predict accurately, in most cases, what the electron configuration of molecules are going to be.
我们用它是因为它极为精确，并且能让我们非常非常快地预测,而且是准确地预测，大多数情况下，分子应该具有的电子排布。
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And this is the same periodic table that you're going to get in your exams, so it's good to practice doing your problem-sets with that periodic table so you're not relying on having the double check right there of seeing what the electron configuration is.
这也是你们考试时会用到的相同的表,这样你们就不会，所以使用周期表来做问题集,是很好的练习,这样你们就,不会依赖于再次确认,电子构型是什么了。
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So, if we want to think about what the first ionization energy is of boron, what you want to do is write out the electron configuration, because then you can think about where it is that the electron's coming out of.
如果我们要考虑,硼的第一电离能，你首先要做的是写出它的电子排布，因为在这之后,你才能知道拿走的是哪里的电子。
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Then something that you probably have a lot of experience with is talking about electron configuration and writing out the electron configuration.
然后有一些事情是,你们可能有较多经验,那就是讨论电子构型以及,写出它们。
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These are all isoelectronic, they all have the same electron configuration. And we can also think about going back to atomic size for a second.
这些都是等电子的，它们都有相同的电子排布，而,我们还可以再回想一下原子尺寸的概念。
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And again, I've written for you, but you can figure out what the electron configuration is just by writing up in this order here.
同样，我已经写出来了，但你们可以把这个写出来,就知道电子轨道构型是什么。
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So it looks like most of you got that the electron configuration that we're writing here is for copper.
看来大多数人,都看出了,这是铜原子的电子排布。
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So we can write out what the electron configuration is here, and I think that I have already written that out for you in your notes.
我们可以在这里写出电子构型，我觉得我已经在你们,讲义上写出来了。
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So why don't you go ahead and identify the correct electron configuration for carbon, 6 and I'll tell you that z is equal to 6 here.
所以你们为什么不开始,而且识别碳的正确的在你们做作业方面,电子构型，我会告诉你有效电荷量是。
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First we can do that by knowing the electron configuration, we can write it out just by going up the table here, up the energy levels.
首先我们知道了电子构型，我们可以从，能量最低处开始填。
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So let's draw the electron configuration of hydrogen, the molecule, molecular hydrogen.
让我们来画氢原子的,电子构型，分子，氢分子。
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So, that's actually the electron configuration we have when we're talking about copper and some other exceptions in the periodic table that you're going to be looking at.
因此，这才是铜原子真正的电子排布,而且我们在元素周期表中,会看到与铜原子类似的,其他例外的情况。
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And we can also write this in an even simpler form, which is what's called electron configuration, and this is just a shorthand notation for these electron wave functions.
而且我们也可以将它，写为一个更简单的形式，它叫做电子构型,这个仅仅是这些电子波函数的。
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- The answer to that is definitely no -- if they had the same electron configuration, they would, in fact be neon. But we can think about different ions that have this electron configuration.
答案是绝对没有-,如果它们具有相同的电子排布，那么它们，实际上,将都是氖，但是我们可以想一想,有没有其它离子具有这种电子排布呢？
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So, as an example, let's take argon, I've written up the electron configuration here, and let's think about what some of the similarities might be between wave functions in argon and wave functions for hydrogen.
所以作为一个例子我们来看看氩，我已经把它的电子构型写在这里，我们来考虑氩和,氢波函数之间的,一些相似性。
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And I know there's a lot to talk about this competition, but let's just get into listening mode here and talk about how we can figure out what the correct electron configuration is for this ion.
我知道刚才关于这次比赛大家有很多话要聊，但是请大家先转换到听讲的模式,来看看如何才能弄清楚,这个离子正确的电子排布。
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So we can go ahead and think about, well, are there any other atoms that are going to have the same electron configuration?
那么我们可以开始想一想，好，有没有其它原子,具有相同的电子排布？
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So for example, if we think about fluorine, 1 s 2 2 s 2 2 p 5 that has an electron configuration of 1 s 2, 2 s 2, 2 p 5, so all we would need to do is add one more electron to get the same configuration as for neon.
比如，如果我们考虑氟原子的话，它的电子排布是，因此我们所需要做的就是给它加上一个电子,使得它与氖原子的电子排布相同。
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The first thing we need to do is write the electron configuration for the atom itself, and then we need to take an electron away.
首先我们要做的是,写出原子的电子排布，然后，我们再拿走一个电子。
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But that's an idea of what it actually means to talk about electron configuration.
但那是一个实际了解什么是,电子构型的思路。
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So basically, at the time he was just going on size and then traits, but what we actually know today is that we can also order things in the periodic table by electron configuration.
基本上，在当时他只能通过大小,和特性来进行，但是现在我们已经知道了,我们还可以通过电子排布来对它们进行排序。
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So let's think about what the valence electron configuration is here.
让我们看看这里的,电子构型是什么样的。
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s 2 2 s 2 2 p 6 This has the electron configuration of 1 s 2, 2 s 2, and 2 p 6.
它的电子排布是。
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