py And finally, we can look at the 2 p y, so the highest probability is going to be along the y-axis.
最后我们来看一下,概率密度最高的是沿着y轴。
So, let's actually compare the radial probability distribution of p orbitals to what we've already looked at, which are s orbitals, and we'll find that we can get some information out of comparing these graphs.
让我们来比较一下p轨道,和我们看过的,s轨道的径向概率分布,我们发现我们可以通过,比较这些图得到一些信息。
I have the case where p = .2, so the probability of an accident is 20%.
假设这里的p等于0.2,也就是一次事故发生的概率为20%
We'll start with talking about the shape, just like we did with the s orbitals, and then move on to those radial probability distributions and compare the radial probability at different radius for p orbital versus an s orbital.
想我们对待s轨道那样,我们先讨论p轨道的形状,然后是径向概率密度分布,并且把s轨道和p轨道在,不同半径处的径向概率做一个比较。
So, if we say that in this entire plane we have zero probability of finding a p electron anywhere in the plane, the plane goes directly through the nucleus in every case but a p orbital, so what we can also say is that there is zero probability of finding a p electron at the nucleus.
而只要是p轨道,这个平面都直接,穿过原子核,那么我们,可以说在原子核上,找到一个p电子的概率为零。
s And if we go ahead and superimpose the 3 s on top of the 3 p, you can see that the 3 s actually has some bit of probability density that gets even closer to the nucleus than the 3 p did.
如果我们继续将,重叠到3p上面,你们会看到3s事实上,有一点概率密度,距离原子核更近,比3p轨道。
So what we can say is look at each of these separately, so if we start with looking at the 2 p z orbital, the highest probability of finding an electron in the 2 p z orbital, is going to be along this z-axis.
我们可以来分别看看这些图,首先来看看2pz轨道,在2pz轨道里,找到电子的最大概率,是沿着z轴。
So think about what that means, we're, of course, not talking about this in classical terms, so what it means if we have an electron in the 2 p orbital, it's more likely, the probability is that will be closer to the nucleus than it would be if it were in the 2 s orbital.
想想这意味着什么,我们不是从经典的角度考虑,这意味着如果我们有个电子在2p轨道上,它更有可能比在2s轨道上,更加靠近原子核。
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