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So we'll talk specifically about drawing Lewis structures and then about formal charge and resonance, which are within Lewis structures.
因此我们会专门讲一讲,如何来画路易斯结构,然后再讨论形式电荷与共振论，它们也属于路易斯结构的范畴。
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Part of the resonance and power of that famous refrain, "a terrible beauty is born," is that this beauty is being born not only in the world but in Yeats's poetry.
部分激发联想的力量,以及那著名的叠唱的力量，一中惊人之美诞生了“,那种美,不仅诞生于现实世界,也诞生于叶芝的诗歌。
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When we talk about resonance structures, we're talking about cases that have the same arrangement of atoms the key is the atoms are the same, and the thing that is different is the arrangement of electrons here.
当我们讨论共振结构的时候，我们讨论的是原子排布相同情况,关键在于原子是相同的，不一样的只是电子排布。
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An experiment called functional magnetic resonance imaging as illustrated here.
有一种试验叫做功能核磁共振成像。
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Does that make any--does that have any resonance to you?
你们就没有一点共鸣么
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So this is a case where we have resonance structures, or we call this a resonance hybrid.
因此在这种情况下我们就有了共振结构，或者我们叫它共振杂化。
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When we talk about resonance structures, the key word is that the electrons are delocalized.
但我们讨论共振结构的时候，关键词应该是非局域化的电子。
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This is resonance, this is a case of a resonance structure.
它是共振的，这是一个共振结构的情形。
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And Easter is an important resonance here, obviously.
在复活节引起巨响的这一事件，显然。
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So, when you think about resonance structures, some students tend to just get confused and be picturing this flickering back and forth.
那么，当大家想象共振结构的时候，有些同学很容易被弄晕,不停地来回想象。
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So, of course, this is resonance so we can go ahead and put our resonance notation in there to indicate that benzene is a resonance structure.
当然，这是共振的,所以我们可以在这里标上共振记号,表明苯环是一个共振结构。
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So if we want to put that in chemical terms, we want to make sure we put these in brackets here, and remember, this is the resonance arrow, it's not a reaction arrow, it's a resonance arrow, so make sure you mark it up correctly like that.
那么如果我们把它类比到化学中来，我们要确保它们都放在括号里，而且要记住，这是一个表示共振态的箭头，而不是表示化学反应的，它是一个表示共振态的箭头，因此请务必像这样正确地标记它。
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And an important thing to remember when we talk about resonance hybrids is that the structure it's not 1/2 the time this structure, and 1/2 of the time this structure, it's actually some combination or some average between the two structures.
而当我们讨论共振杂化的时候,有一件重要的事情需要牢记,那就是这种结构并不是,一半时间处于这种结构的状态，而另外一半时间又变成了这种结构的状态，它实际上是两种结构在,一定程度上的组合或者平均。
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So one last concept that I want introduces is this idea of resonance.
我要介绍的最后一部分内容,是共振态这个概念。
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And resonance is the idea that sometimes one single Lewis structure does not adequately describe the electron configuration around a given molecule, so instead you need to draw two different Lewis structures to describe that more appropriately.
而所谓共振态,就是有时候一个路易斯结构不足以,完整描述一个给定分子的电子排布，因此这时你需要同时画出两个,不同的路易斯结构来描述它,这样会更恰当。
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We can do this using magnetic resonance imagers.
现在，我们用核磁共振成像仪就可以做到。
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But since in drawing Lewis structures actually, in some cases you do, you can draw a dotted line that means a 1 and 1/2 bond, but most in most cases, we just draw out both resonance structures, and the way that we say it's a resonance structure is that we put it in the brackets and we put an arrow between it.
但是由于在画路易斯结构时,其实，在某些情况下是可以的，你可以画一条虚线来表示一又二分之一键，但是在多数情况下，我们就把两个结构都画出来，而我们说这是一个共振结构的表示的方法是,把它们放在括号里，并在中间放一个双箭头。
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