• So what we're going to see is less shielding, which means that it will actually feel a higher z effective.

    那么我们将会看到更少的屏蔽,这意味着将会感受到更大的有效核电

    麻省理工公开课 - 化学原理课程节选

  • Not only are we taking away an electron here, but we're also going to decrease shielding, so the electrons that are already in there are going to feel a higher z effective and will be pulling and the atom will be getting smaller.

    这不只是因为我们拿走了一个电子,还因为我们这样做会减小屏蔽效应,这样留下的电子,将会感受到更大的有效核电,也就会感受到更强的吸引力,使得原子变得更小。

    麻省理工公开课 - 化学原理课程节选

  • Because nutrition is going to be one of the big problems of your generation; how to have enough nutritious food for the population as it grows.

    因为营养,对你们这一代人是个问题,怎样才能确保食物的质和,能够满足日益增长人口的需求

    耶鲁公开课 - 生物医学工程探索课程节选

  • Expensive stocks move more.

    贵的股票的移动

    麻省理工公开课 - 计算机科学及编程导论课程节选

  • It turns out, and we're going to get the idea of shielding, so it's not going to actually +18 feel that full plus 18, but it'll feel a whole lot more than it will just feel in terms of a hydrogen atom where we only have a nuclear charge of one.

    结果是我们会有,屏蔽的想法,所以它不会是完整的,但是它会比原子核电荷,吸引力要很多,只有1的氢原子的。

    麻省理工公开课 - 化学原理课程节选

  • They're less shielded because they're closer to the nucleus, they feel a greater z effective.

    它们受到少的屏蔽,因为它们离原子核更近,它们感觉到一个更大的有效电荷

    麻省理工公开课 - 化学原理课程节选

  • And it turns out that if we have a, for example, for s, a very large z effective or larger z effective than for 2 p, and we plug in a large value here in the numerator, that means we're going to end up with a very large negative number.

    结果是如果我们有一个,举例来说对于s一个很大的有效电荷或者,比2p大的有效电荷,并且我们将一个较大的值代入计算器,那意味着我们最后会得到,一个非常大的负数。

    麻省理工公开课 - 化学原理课程节选

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