But for the time being, nothing in terms of improving the number of soldiers before the London conference, where we are supposed to talk about strategy,".
VOA: standard.2009.12.05
Objection number one - and here I'll come down to - I wanna talk to team libertarian over here.
第一条反对,我先到下面去-,到这边来和自由主义队员对话。
So if we're talking about the fourth excited state, and we talk instead about principle quantum numbers, what principle quantum number corresponds to the fourth excited state of a hydrogen atom.
如果我们说的是,第四激发态,我们用,主量子数来描述,哪个主量子数对应了,氢原子的第四激发态?
So I think it is important to keep this in mind and I'm gonna be coming back to this a number of times as we talk about the experiments we were doing at the Soen School of management.
你们要牢记这一点,因为之后,我们会谈到这个问题,做的实验时,我会反复提到这个内容。
They'd like to be able to refer to each carbon separately so they can talk about reactions with this molecule, so they number the carbons.
为了在探讨这种大分子的,化学反应时能清楚地,表示每一个碳原子,人们对碳原子进行了编号
Let's talk about physical attractiveness as number two of the more interesting four.
现在说一下生理吸引力,这是第二个有趣因素。
So, for the most part any time we talk about or draw pointers an arrow suffices, which really 71 in there is a number like 71, which is the literal byte that the F is actually in in RAM, but frankly who cares?
所以,每次我们讨论,或者用箭头表示指针,在指针里面有一个数字,如,那是F在RAM中的字节,但是谁在乎它呢?
We didn't just need that n, not just the principle quantum number that we needed to discuss the energy, but we also need to talk about l and m, as we did in our clicker question up here.
我们不仅需要n,不仅要这个可以,决定能量的主量子数,还需要m和l,就像我们做这道题这样。
And when we talk about angular nodes, the number of angular nodes we have in an orbital is going to be equal to l.
当我们谈到角向节点时,一个轨道的,角向节点数等于l
And if we talk about chlorine, and both of the chlorines are the same in this case, we start with a valence number of 7 for chlorine, and then we subtract 6, because it had 6 lone pair electrons around each of the chlorine atoms.
而如果我们讨论氯的话,在这个例子中两个氯的情况都是一样的,从七个价电子开始,然后减去六,因为每个氯原子周围,都有六个孤对电子。
And when we talk about l it is a quantum number, so because it's a quantum number, we know that it can only have discreet values, it can't just be any value we want, it's very specific values.
当我们讲,l是一个量子数时,因为它是量子数,我们知道,它只能去分立的值,它不能取到所有的数,它取一些确定的数。
And when we make these comparisons, one thing I want to point out is that we need to keep the constant principle quantum number constant, so we're talking about a certain state, so we could talk about the n equals 2 state, or the n equals 3 state.
当我们做这些比较时,我想指出的一件事是,我们需要保持常量原则,保持量子数是常数,所以我们在讨论一个确定的态时,我们可以谈论n等于2的态,或者n等于3的态。
So, for example, we can move to the next periods in the periodic table. When we talk about a period, we're just talking about that principle quantum number, so period 2 means that we're talking about starting with the 2 s orbitals, period 3 starts with, what we're now filling into the 3 s orbitals here.
我们可以移至周期表的下一个周期,当我们讨论一个周期时,我们仅仅讨论,周期3以我们所填充的3s轨道,开始填充所以周期2意味着,我们从2s轨道谈起,周期3以我们所填充的3s轨道开始填充。
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