Some people like to use an arrow, and the arrow points in the direction of the more electronegative end.

也可以用箭头，箭头指向,带负电的一极。

麻省理工公开课 - 固态化学导论课程节选

And you see where the most electronegative elements are, and fluorine is the most electronegative of the active elements.

你找一下电子力最大的元素在哪，氟是活泼元素中,电子力最大的。

麻省理工公开课 - 固态化学导论课程节选

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。

麻省理工公开课 - 化学原理课程节选

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。

麻省理工公开课 - 化学原理课程节选

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。

麻省理工公开课 - 化学原理课程节选

So, if we compare the sulfur to the oxygen, the oxygen it turns out is more electronegative and that is what holds the negative charge in this molecule.

因此，如果我们来比一下硫和氧，氧应该有更高的电负性,而在这个分子中它确实有负的电荷。

麻省理工公开课 - 化学原理课程节选

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。

麻省理工公开课 - 化学原理课程节选

if we have a very electronegative atom within a certain molecule, what you'll actually find is that it does affect how the molecule is going to take place or take part in different chemical or biological reactions.

如果在某个分子中有一个电负性很高的原子，你会发现它确实会影响到,这个分子所起的作用,在不同的化学反应或者生物反应中时。

麻省理工公开课 - 化学原理课程节选

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。

麻省理工公开课 - 固态化学导论课程节选

This should make sense because if something has a low ionization energy, that means it's not very electronegative, which means it's going to be a lot happier giving up electron density, which is essentially what you're doing -- when you're forming covalent bonds is you're sharing some of your electron density.

这应该是合理的,因为如果某物的电离能很低，这也就意味着它的电负性也不高，那么它就会更愿意,放弃一定的电子密度，而本质上这正是你在,形成共价键时所需要做的,分享你的一些电子密度。

麻省理工公开课 - 化学原理课程节选

Which of those two is more electronegative? The oxygen.

它们两个中哪个有更高的电负性？氧。

麻省理工公开课 - 化学原理课程节选

But you need to be able to predict what kind of properties a certain atom's going to have within a molecule, whether you're talking about something, for example, that's very electronegative, or something that is not electronegative at all, it is going to make a difference in terms of thinking about how molecules are structured and also how they interact with other molecules.

但是你需要能够预言，什么性质,某个原子在分子中能够具有，无论你讨论的是哪一种情况，比如，它有很高的电负性，还是它根本没有电负性，都将会产生影响,对这个分子的结构,以及与其它分子相互作用的情况。

麻省理工公开课 - 化学原理课程节选