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我们有七个价电子。So we have seven valence electrons.

钾在化合物中的原子价是1。Potassium in compounds has valence 1.

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迄今为止，我指的是价电子。And by now, I mean the valence electrons.

结果是我们总共有十个价电子。So we end up having 10 valence electrons.

氯有几个价电子？How many valence electrons are in chlorine?

我们还剩下多少个价电子？How many valence electrons do we have left?

然后它说，考虑所有的价电子。Then it says, count all the valence electrons.

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他们有较低的平均价电子能。These have low average valence electron energies.

这意味着价电子的合作共享。It means cooperative sharing of valence electrons.

我们下一步要考虑的是价电子。Our next step is thinking about valence electrons.

它的平均价电子能很低。It's got a very low average valence electron energy.

但是如果我们捕获了所有价电子又怎样呢。So, what if we capture all of the valence electrons.

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同样的，我们只讨论价电子。Again, we're just talking about the valence electrons.

这个最外层被称作价电子层。And, this outermost shell is termed the valence shell.

因此我们应该还剩下了两个价电子。So it turns out that we have 2 valence electrons left.

这是B2的价电子构型。So this is our valence electron configuration for b 2.

让我们用价电子成键理论来看一看甲烷。So let's think about methane using valence bond theory.

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我们需要考虑这些价电子。We actually need to think about those valence electrons.

是1s2，2s2，2p3，Nitrogen，is，1s2，，2s2，，2p3，因此，有5个价层电子。N so, we've got five electrons here in the valence shell.

要得到全部是满壳层需要多少个？How many do we need to get full valence shells everywhere?