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。

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。

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？

So that's a little bit of an introduction into electron configuration.

所以那是一点点关于,电子构型的入门。

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。

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。

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。

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。

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。

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。

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？

So this is our electron configuration.

这就是电子构型。

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。

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。

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。

In the first case, so here is the electron configuration of neon.

首先，这是氖原子的电子排布。

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。

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。

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。

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。

In addition, the systematic method for deducing the atomic spectroscopic terms of a random electron configuration in L-S or J-J coupling is found.

系统建立了原子中任一电子组态L-S偶合和J-J偶合情况下光谱项的推求方法。

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。

So here we're talking about v plus 1, so if we were to write it just for the neutral electron itself, we would find that the electron configuration is argon, that's the filled shell in front of it.

这里我们要分析的是正一价的钒离子，因此，我们先写出中性原子的电子排布，可以发现，其原子实是氩原子的电子排布，这些壳层已经被占满了。

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。

So if we write the electron configuration you see that this is the electron configuration here, 1s22s22p 1 s 2, 2 s 2, 2 p 6, 3s1 and now we're going into that third shell 3 s 1.

现在我们来到第三层,你们会看到3s1价电子之间的区别，电子构型是，现在我们来到第三层。

So, if we take h 2, and we want to draw the electron configuration, it's very short.

如果我们取h2，我们要画电子构型，这很简单。

So, for example, if we needed to figure out the electron configuration for titanium, 4s2 it would just be argon then 4 s 2, 3d2 and then we would fill in the 3 d 2.

所以举个例子,如果我们需要解出钛的电子构型，它会是Ar然后，然后我们填充。

So this is our valence electron configuration for b 2.

这是B2的价电子构型。

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。