And so as a way of understanding what at this point is really the sheer repetitiveness of this disclaimer, I want to propose a metaphor.
因此为了理解这个论点是否真的,是这种放弃的纯粹的重复,我将会提出一个隐喻。
So the point is, there is something here called operator precedence, which is what the gentleman said.
这里我要说的就是,这里有个,叫做操作优先的规则,也就是刚才那位先生说的。
So what I want to point out is 3d2 what we said now is that the 3 d 2 is actually lower in energy, so if we were to rewrite this in terms of what the actual energy order is, 3d2 4s2 we should instead write it 3 d 2, 4 s 2.
所以我们想指出的是,我们现在所说的是,实际上能量比较低,所以如果我们重新的,写出实际的能量顺序,我们应该写出。
You'd be hard pressed to identify what the meter of that is so that's one reason, and of course what--where am I going with the next important point about what's happening in this music?
你会很难确定其中的节拍,这也是原因之一,当然这也是我将要讲解的下个关键点,关于在这类音乐中的情形
pV So there is an arbitrary set point that needs to be defined, right? Because what you actually measure in the lab are changes in enthalpy, just like what you measure when you look at energy change of some sort, you measure the change in energy, right.
焓也是一样,焓是U加,所以需要定义一个任意的设定值,对吧?因为实际上你在实验室里,测得的是焓的改变,就像你在研究某种能量变化时,所测量的那样,你测量的是能量的改变,对吧。
So what I want to point out with this case in beryllium is that you don't have to use all of the electrons to figure out the bond order, and in fact, once you get to molecules 10 that are from atoms with atomic numbers of 8 or 10, you're not going to want to maybe draw out the full molecular orbital diagram.
我要指出的是,在Be这种情况下,你不需要利用,所有的电子来指导键序,实际上,一旦分子中,原子序数到达了8或者,你也许不想画出,整个分子轨道图。
So what I want to point out when you're kind of looking at these numbers here, what the significance is, look at that huge difference between what the ionization energies are for what we call those valence electrons, -- those outer shell electrons, those are core electrons there.
我在这里想要指出的是,当大家在看这些数字的时候,最重要的是,要看到这些,巨大的差异,看到所谓价电子,即外层电子的电离能与,1,s,轨道,电离能之间的巨大差异。
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