• And this would sit on your belt. So it would sit like this and there would be batteries that you could either put in a fanny pack or there are all kinds of jackets you could wear in order to support the batteries,"

    VOA: standard.2010.01.27

  • If, in fact, a gold nucleus was this size here, we would need to use another lecture hall in order to find a place to put this nucleus right here.

    那么这个实验就太诡异了,所以我们决定,把距离压缩一下,我们要考虑到这一点。

    麻省理工公开课 - 化学原理课程节选

  • So what that means is that's how much energy we would have to put into a hydrogen molecule in order to get it to split apart into its two atoms.

    它的意义,就是我们需要向一个氢分子中注入这么大的能量,才能将它分解成两个独立的原子。

    麻省理工公开课 - 化学原理课程节选

  • If we have a higher z effective, it's pulled in tighter, we have to put in more energy in order to eject an electron, so it turns out that that's why case 2 is actually the lowest energy that we need to put in.

    而如果有效核电量更高,原子核的束缚也就更紧,我们不得不输入更多的能量来打出一个电子,这就是第二种情况,所需要输入的,能量更少的原因。

    麻省理工公开课 - 化学原理课程节选

  • You got an extra hint here in terms of the order, so even if you had just forgotten what I said, sometimes it's not a terrible idea just to put it in the order it's written, that can give you a lot of clues as well.

    其实大家还可以发现一个额外的提示,因此即使你忘了我刚才说的,有时候直接按照这个顺序,排列也不失为一个办法,这也可以给你很多提示。

    麻省理工公开课 - 化学原理课程节选

  • So if we can figure out the binding energy, we can also figure out how much energy we have to put into our atom in order to a eject or ionize an electron.

    所以如果我们可以计算出结合能,我们也可以计算出,我们需要注入多少能量到原子中,去逐出或电离一个电子。

    麻省理工公开课 - 化学原理课程节选

  • Remember, because that 1 s orbital is all the way down in terms of if we're thinking about an energy diagram, we're all the way down here, so we have a huge amount of energy we have to put into the system in order to eject an electron.

    还记得吧,因为1,s,轨道在能量示意图里,是在最底部的,我们要一直到最下面,所以我们要向这个系统注入非常大的能量,才能打出一个电子。

    麻省理工公开课 - 化学原理课程节选

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