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The electronic configuration, all it is is the shorthand notation for that one electron approximation for the Schrodinger equation for lithium.
电子构型就是，对于锂的薛定谔方程,的单电子近似的,简化形式。
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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 there are two electron configurations in the n equals one shell, if we follow according to the selection rules that we spelled out last day.
如果根据上次课,我们阐明的原子光谱选择定则，我们就会知道在n等于1的那一层,有两种电子图像构型。
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So the last thing I want to mention today is how we can think about electron configurations for ions.
今天我想提到的最后一件事,就是我们怎样考虑离子的,电子构型。
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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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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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So if we think about what we would do to actually write out this configuration, we just write the energy levels that we see here or the orbital approximations.
如果我们考虑我们所做的去,实际写出电子构型，我们只是写出我们看到的能级,或者是轨道近似就可以了。
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So writing out electron configurations I realize is something that a lot of you had experience many of you are very comfortable doing it, especially for the more straightforward atoms.
所以我认为写出电子构型是,你们大多数在高中,你们大多数可能都非常熟练做出它，特别是对于更为简单的原子。
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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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But we'll go over that, particularly some exceptions, when we're filling in electron configurations, and how we would go about doing that for positive ions, which follow a little bit of a different procedure.
但是我们将会重温它们，特别是一个特例，当我们填充一个电子构型，而且我们会如何着手,处理阳离子，它遵从一些别的不同的过程。
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So you might ask in terms of when you're writing electron configurations, which way should you write it.
所以你们可能会问当你们,在写电子构型的时候，在写电子构型的时候。
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What you saw, what we've done a lot of is drawing the electron configurations for different atoms, we can do the same thing for a molecule.
你们会看到，我们已经画过很多,不同原子的电子构型，我们也可以对分子做同样的事情。
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If we look at this configuration, what we say is all of the electrons in these inner shells are what we call core electrons.
如果我们看到这个构型，我们所说的是,所有的内层,都是核电子。
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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。
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But it looks like you guys are all experts here on doing these electron configurations.
所以但是看起来你们在,做电子构型方面都是专家了。
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So, whichever works best for you can do in terms of figuring out electron configurations.
所以不管哪一个你们用的最好,都可以写出电子构型。
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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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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。
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So, let's move on to some more complicated electron configurations.
让我们看看一些更复杂的,电子构型。
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So if you want to on an exam, you can just write this down quickly at the beginning and refer to it as you're filling up your electron configurations, but also if you look at the periodic table it's very clear as you try to fill it up that way that the same order comes out of that.
如果你们想要在考试中，你们要在开始时快速地把这个写下来,然后在填充电子构型,的时候参考它，但是如果你们看着周期表,它就非常清楚了当你们将它用从那产生的,同样的顺序来填充。
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So this is our electron configuration.
这就是电子构型。
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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。
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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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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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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, 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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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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