• Prime Minister Fischer and President Klaus have yet to decide who will be in charge of this and other events of the E.U.presidency.

    VOA: standard.2009.05.11

  • But I want you to tell me in terms of thinking about formal charge, which Lewis structure would you predict to be the most stable?

    但我想让大家告诉我,从形式电荷的角度考虑,你会预测哪一个路易斯结构是最稳定的?

    麻省理工公开课 - 化学原理课程节选

  • So when we talk about the size of multi-electron orbitals, they're actually going to be smaller because they're being pulled in closer to the nucleus because of that stronger attraction because of the higher charge of the nucleus in a multi-electron atom compared to a hydrogen atom.

    所以当我们讨论,多电子轨道的尺寸,它们实际上会变得更小,因为多电子原子的原子核,相比于氢原子,有更高的电荷量所以,有更强的吸引力,所以可以拉的更近。

    麻省理工公开课 - 化学原理课程节选

  • But we could, for example, look at a case where we have several different structures that look pretty good, and the one we want to determine as being the lowest energy structure is the one in which the absolute values of the formal charges are going to be lower, so essentially that they have less charge separation.

    但是我们可能,比如,遇到一种情况,有好几个候选的路易斯结构看起来都挺好的,这时候我们就需要,通过比较哪个形式电荷的绝对值更低,来决定哪个结构的能量更低,本质上这个结构中分开的电荷更少。

    麻省理工公开课 - 化学原理课程节选

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