It looks like most of you got that the electron configuration that we're writing here is for copper.
看起来你们大多数人都知道我们这里写的是铜的电子排布。
So this is our electron configuration.
这就是电子构型。
So this is our valence electron configuration for b 2.
这是B2的价电子构型。
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。
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 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。
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。
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, 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。
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。
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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