• 如果我们捕获所有价电子会怎样呢?

    What if we capture all of the valence electrons?

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  • 我们通过叫做平均电子来解决一问题

    We solve this problem by a quantity called the average valence electron energy.

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  • 现在这个结构下讨论这些价电子可能会我们化学反应有更深的理解。

    Now with this framework, I said that talking about these valence electrons might give us some insight into chemical reactivity.

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  • 我们都知道因为氧气中的硫具有不同平均电子它们的电子亲和力不同。

    We know that because the sulfur and the chlorine in the oxygen have different average valence electron energies, they'll have different electron affinities.

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  • 然后考虑所有价电子

    Then it says, count all the valence electrons.

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  • 我们下一步考虑的是价电子

    Our next step is thinking about valence electrons.

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  • 迄今为止的是价电子

    And by now, I mean the valence electrons.

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  • 他们较低平均电子能。

    These have low average valence electron energies.

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  • 话说,就是所有价电子平均能量

    In other words, if the average energy of all the valence electrons.

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  • 我们剩下多少价电子

    How many valence electrons do we have left?

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  • 我们需要考虑这些价电子

    We actually need to think about those valence electrons.

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  • 但是如果我们捕获所有价电子怎样呢。

    So, what if we capture all of the valence electrons.

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  • 所以lewis结构里,8价电子

    So what we should have is 8 valence electrons in our Lewis structure.

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  • 同样结构只有七个价电子

    Now here is fluorine, same skeleton, only fluorine has seven valence electrons.

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  • 吧,具有最高电子平均

    All right, well, oxygen has the highest valence electron energy.

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  • 教授55个价电子原子序数7

    PROFESSOR: fivethere's five valence electrons, but the atomic number is actually seven.

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  • 我们七个价电子

    So we have seven valence electrons.

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  • 价电子理论非常容易理解

    So the idea behind valence bond theory is very easy to understand.

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  • 指出是,电子价电子之间的区别。

    And I want to point out the difference between core electrons and valence electrons here.

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  • 同样的,我们讨论价电子

    Again, we're just talking about the valence electrons.

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  • 几个价电子

    How many valence electrons are in chlorine?

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  • 我们第二需要知道价电子个数

    For our step two, what we need is number of valence electrons.

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  • 我们价电子成键理论来看一甲烷

    So let's think about methane using valence bond theory.

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  • 所做全部,考虑到了价电子关系

    And, all he's done is leave the valence electrons associated.

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  • 例如我们可以讨论原子,氮原子5个价电子

    For example, we can talk about nitrogen, and nitrogen has five valence electrons shown here.

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  • 希望大家记得价电子电子的定义。

    So, hopefully, you remember what we mean by valence electrons versus core electrons.

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  • 平均电子

    It's got a very low average valence electron energy.

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  • B2的价电子构型

    So this is our valence electron configuration for b 2.

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  • 那么四个价电子

    So we're talking about four valence electrons for carbon.

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  • 好的,把具有最低平均电子元素画在中心

    And, it says, OK, center the element with the lowest average valence electron energy.

    youdao

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