• Of course, if we saw no shielding at all what we would end up with 3 is a z effective of 3.

    当然如果我们说没有任何屏蔽,我们最后得到的,有效电荷是。

    麻省理工公开课 - 化学原理课程节选

  • Interestingly enough, the percentage moves are not much different between cheap stocks and expensive stocks.

    很有趣的是,百分比的移动在便宜股票和贵股票之间,没有什么区别。

    麻省理工公开课 - 计算机科学及编程导论课程节选

  • The Born term is not going to be felt, except in this first one.

    因为玻恩几乎没有影响,除了对第一个原子。

    麻省理工公开课 - 固态化学导论课程节选

  • At least I don't have those. But what I've done is to excerpt some of the texts earlier in the term-- and actually there's so that it's a little bit lighter after break, when we're doing those long novels.

    至少我没有列出那些,但我已经做完的是,在放假前当然会有稍多的阅读,假期过后我们再读那些长篇小说时就会轻松一点。

    耶鲁公开课 - 1945年后的美国小说课程节选

  • Calorimeter doesn't change in this process.

    热计在这个过程中并没有改变。

    麻省理工公开课 - 热力学与动力学课程节选

  • You realize it's very subtle, because the very first thing in that equation, which is m, has not yet been defined.

    你会觉得这很微妙,因为方程里最基本的 也就是 m,还没有人给它下定义

    耶鲁公开课 - 基础物理课程节选

  • So the most basic answer that doesn't explain why is just to say well, the s orbital is lower in energy than the p orbital, but we now have a more complete answer, so we can actually describe why that is.

    所以最基本的答案是那没有解释,所以我们事实上可以描述,为什么是那样,但是我们现在有一个更复杂的答案,又是有效电荷

    麻省理工公开课 - 化学原理课程节选

  • The reason it's aluminum is because aluminum has a lower z effective, so it's not being pulled in as tightly by the nucleus, and if it's not being pulled in as tightly, you're going to have to put in less energy in order to ionize it, so that's why it's actually going to have the smaller ionization energy.

    原因是,铝的有效核电更少,所以没有被原子核束缚得更紧,而如果没有被束缚得更紧,你为了电离它所需要注入的能也就更少,这就是,它的电离能会更低的原因。

    麻省理工公开课 - 化学原理课程节选

  • We know that it has to be equal to less than 2, because even if we had absolutely no shielding at 2 all, the highest z effective we could have is 2, so it makes perfect sense that we have a z effective that falls somewhere in the middle of those two.

    我们知道它必须小于,因为即使完全没有一点屏蔽,最高的有效的z是,所以我们得到的有效电荷处于,两者之间就非常讲得通了,让我们来看看另一个例子。

    麻省理工公开课 - 化学原理课程节选

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