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So, when we get really close together, granted, there is a net positive negative charge with a Coulombic force of attraction.
当它们真正离得很近时，假设有一个带正负电的电荷,带有库仑引力。
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And in this case, the tie-breaker goes to the molecule in which the negative charge is on the most electronegative atom.
而在这种情况下，我们需要进行“附加赛“,也就是看看分子中带有负的,形式电荷的原子是不是电负性最高的。
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So, Marsden came up with the model, and as you go through 8.02 and you understand electrostatics and electrodynamics, you'll be able to do this analysis.
后来马斯登提出了这个模型，就像你们通过8。02的考试一样2,你们学过了静电学和电动力学，你也能做这些分析。
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Well, if you're implementing a computer that needs to represent information now all you need is something like electricity which can be on or off, on or off.
好吧，如果你正用一个电脑,来表现表达传递信息的功能,你就需要,像电开关一样的物体。
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I don't know if you know how a spark plug works, but for the electrical current to fly into operation in a spark plug, the two points of contact have to be gapped.
我不知道你们是否知道,火花塞是怎样工作的，在电流通入火花塞中使它运转之前，两个接触点之间需要有空隙。
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You bring somebody in the sleep lab, you put electrodes on their scalp and you see what these-- what sort of electrical activities you get in the brain.
把人叫来睡眠实验室，把电极贴在他们的头皮上,你就能看到-,他们有什么脑电活动。
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And then finally we could add that--the idea that maybe with a lot of electronic basses and things like that that they play--they tend to play the bass just louder.
然后最后我们可以添加这个，一种很多电贝斯和其他同类乐器演奏的方式,倾向于将低音演奏得响亮一些。
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In the heart it turns out that the cells of the heart are electrically coupled together, so if an action potential moves down this cell it directly moves into the next cell.
在心脏中,事实证明,心脏细胞是电偶联的,所以如果动作电位在一个细胞中传递,那么直接就能传递给下个细胞
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Sometimes we have a very electronegative atom that's going to take more of its equal share of electron density.
有时候我们会有一个电负性很高的原子,它将会获取更多的共用电子密度。
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if we think about electronegativity as a periodic trend we can just draw our nice periodic table here, and let's separate it into quadrants.
如果我们来思考一下电负性的周期性规律,我们可以把我们漂亮的周期表画在这，然后把它分成四个象限。
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So that means that the more stable molecule is going to be this molecule here, which actually puts the negative charge on be more electronegative atom.
因此这意味着更稳定的分子,应该是这一个，它真正把负的电荷放到了,电负性更高的原子上。
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There is a repulsive force, the attractive force between ions of opposite charge is offset by a repulsive force due to electron cloud interactions.
有一个斥力时,存在于电性不同的离子间的引力,是可以被抵消的，因为电子可以相互影响。
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We've found that stimulation, electrical stimulation deep in the brain can help patients that have Parkinson's Disease and can reduce the tremors and loss of muscle control that many patients with Parkinson's Disease use.
我们已经发现,这种脑部深层的电刺激,可以缓解帕金森氏症患者的症状,如震颤和肌肉丧失控制,许多帕金森氏症患者都使用这种疗法
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So we need to go to this second case where we're instead going to think about electronegativity, and we want to think about which atom is the most electronegative.
因此我们需要转到这个第二种情况,来考虑一下电负性，我们需要想想哪个原子的电负性是最高的。
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And, this is the difference in electronegativity between the two elements, all right?
就是在两个元素之间的,电负性的差别？
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So if we think about the upper right hand part of the quadrant, well, this is where we're going to have high electron affinity and high ionization energy, so we're also going to see high electronegativity here.
那么让我们来看看右上方的部分，好，在这里我们将会有高的电子亲和能,与高的电离能，因此我们会看到这里的电负性也很高。
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So carbon is to the right of hydrogen, this is more electronegative.
碳在氢的右边，所以它较氢更是电负性的。
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And to measure the intensity of unequal sharing, we take the difference in electronegativity, which I am going to use the Greek symbol chi for.
要度量非平均的程度，我们考虑电负性的差异，我要用希腊语第22个字母chi来表示电负性。
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So let's listen to a track here, a sax solo and I am going to try to keep-- make some sense out of this-- because it gets more and more complex-- by following the electric bass underneath so let's listen to an old tape.
那么我们听一下这段音轨,一段萨克斯独奏,我会尽量从中,理出一些头绪,因为我们的音乐片段会越来越复杂,大家可以跟着底下电贝斯的节奏,好的,我们来一下老磁带
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He introduced the concept of electronegativity which was a measure, therefore, it is quantitative, of the atom's ability to attract electrons within a covalent bond and developed a scale of electronegativity.
他引入了电负性这一概念,一个反映着原子在成共价键时吸引电子的能力的数据标度，因此这是数量上的，在共价电子中,电子原子能吸引电子,并发展为一定规模的电负性。
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The molecule is net neutral, but this right end is a little bit more negative and the left end is a little bit more positive.
这分子是电中性的，但右边要带一点负电荷,而左边要带一点正电荷。
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Well, let's see something really crazy with electronegativity.
让我们看一些东西,关于电负性的。
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And this looks a lot like the average valence electron energy where the lowest values of electronegativity are in the metallic zone and the highest values of electronegativity are on the nonmetallic zone.
这看起来像是平均电子能,最低的电负性在,金属区最高的电负性在,非电子区。
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It is of opposite charge and it exerts an influence, only that is minus to plus so that is going to give me a minus term here.
它具有相反的电性，所以它也会有影响，只有这个负值相对正值来说会起到减少的作用,所以这里将会引入一个负值的量。
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And so, this is a schematic of the electronegativity scale.
因此，这是电负性大小的示意图。
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And the functionality goes as the square of the difference in electronegativity.
这个公式的泛函性与电负性之差,的平方成比例。
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So, when we're talking about the idea of electronegativity, essentially what we're talking about is the ability for an atom to attract electron density from another atom.
那么，当我们在讨论电负性这一概念的时候，本质上我们讨论的是一个原子的吸引能力,用来吸引另一个原子的电子密度的。
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And by here, I mean it's net neutral, but the electron deficiency.
我的意思它是电中性的，只是有些缺电子。
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Which of those two is more electronegative? The oxygen.
它们两个中哪个有更高的电负性？氧。
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Cesium versus gold is the same delta electronegativity difference.
铯和金,具有相同的电负性差。
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