-
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。
-
All right. So formal charge can actually help us out when we're trying to decide between several Lewis structures that look like they might be comparable in terms of which might be the lower energy or the more stable structure.
好的，形式电荷真的可以,帮助我们决定,在几种路易斯结构中,哪个更可能符合能量更低,或者结构更稳定的要求。
-
Energy means, you know, chemical reactions happen, and you end up with something that might be exothermic, that is, the products are more stable then the reactants.
能量表明，当反应发生之后，你最终会得到放热的产物，换句话说就是产物比反应物更稳定。
-
England's money was more stable than other countries.
英国的货币比其他国家的货币还更稳定些。
-
If I can prove that it is greater than one that means that the line is more stable than the set of ion pairs.
如果我可以证明它大于,这就表明,这一line要比这一系列离子更稳定。
-
Or vaccines that could be transported more easily— the hepatitis vaccine that we get is not stable unless it's refrigerated.
或者令疫苗更易于运输,现在的肝炎疫苗一定要冷藏,否则它就不稳定
-
And we haven't talked about reactions at all yet, so you don't need to worry about the specifics of that exactly, but just that if you have this negative change in energy, you have a more stable product than you do reactant.
当然我们还没有开始讨论反应，所以你不用担心它的细节是怎么样的，你只需要知道，如果能量的变化是负值，那么你将得到一个比反应物更稳定的生成物。
-
Those are going to be the more stable or the lower energy structures.
这种结构应该是更稳定的,或者能量更低的结构。
-
You wouldn't be expected to be able to guess that this would happen, because using any kind of simple theory, we would, in fact, predict that this would not be the case, but what we find experimentally is that it's more stable to have half filled d orbital than to have a 4 s 2, and a 3 d 4.
你们不用预期有能力,猜出这个会发生，因为使用任一种简单的理论，我们事实上可以预测不会是那种情况，但是我们在实验中发现的,是半填充d轨道比,4s23d4更加稳定。
-
So, what we know is happening is that were having transitions from some excited states to a more relaxed lower, more stable state in the hydrogen atom.
我们知道，这里所发生的是,氢原子从激发态到更低更稳定的态的跃迁，而我们用眼睛可以探测到的。
-
And what you can see directly from looking at this energy level diagram, is that the molecule that we have is now more stable in the individual atoms.
你从直接看,能级图中会发现，分子比单个的,原子能量更低。
-
Who thinks it's more stable, show of hands? All right, who thinks it's less stable? Very good.
认为更稳定的请举手，好的，谁认为更不稳定？很好。
-
which is the more stable structure, because we have two different structures here.
哪一个结构更加稳定，因为我们这里有两个不同的结构。
-
So it turns out it is, in fact, more stable.
结果应该是更稳定。
-
So whenever we're thinking about energy states, it's lways more stable to be more low in an energy well, so that's why it makes sense that it's favorable, in fact, to have an electron interacting with the nucleus that stabilizes and lowers the energy of that electron by doing so.
负的能量越多，能级越低,无论何时，能级总是越低越稳定,所以这就是为什么电子更,倾向于通过和原子核相互作用,来稳定并降低电子的能级。
-
Remember that when we're talking about 4s1, 3d10, that's one of those exceptions where a completely filled d orbital is more stable than we would expect.
回想上节课的内容我们知道,当我们讨论4s1，3d10，的时候，这是其中一个例外的情况,当，d，轨道全满的时候,电子排布要比我们想象的更加稳定。
-
The reason this an exception is because it turns out that half filled d orbitals are more stable than we could even predict.
这个例外的原因是因为,半填充d轨道比,我们预期的填充方式更加稳定。
-
So, if we have energy that's released, would you say that the chlorine ion is more or less stable than the chlorine atom?
那么，如果我们放出了能量，你认为氯离子比氯原子,更稳定还是更不稳定呢？
应用推荐