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It was a classical model, right, so we could say the electron is exactly this far away from the nucleus.
这是个经典模型，对吧，我们说电子离,原子核就是这么远。
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That's down... probably about 50 blocks or so, 40 blocks. I'm going to walk down there. So I just like to walk.
动物园在离这里四五十个街区远的地方。我要走过去。我只是喜欢散步。
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So, this makes this chart shown in pink make a lot more sense, because if we're way out at very far distances, essentially what we have here is we're talking about two separate atoms.
因此综合考虑这些因素可以发现这条粉红色曲线很合理，因为如果我们离得非常远，本质上来说,我们讨论的就是两个分开的原子。
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Gee, have you ever wondered how they know the composition of stars that are light-years away?
嘿！你曾经是否想过,他们是怎么知道那些离我们好几光年远的,星星的位置的？
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We are turned away from the light.
只会离光明越来越远。
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Go a little bit further with this schematic and talking about what insulin does.
我要说的东西离这个例子有点远,来讲讲胰岛素作用
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Or you start getting farther and farther away from Manhattan,
离曼哈顿越来越远的地方，
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In fact, he claims, he was so far from such debauchery that he had devoted his entire early life to the ideal of virginity.
他声称，事实上他离放荡还差远了,因为他年轻时完全沉浸于贞操理想中。
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I live in words Backban I walk a great deal, I live in the backban walking into class and home, that's 3 or 4 miles right there.
我生活在文字中,我常常走路，我住在,走来上课,走回家去，我家离这里大概三四英里远。
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It landed about one hundred feet away covered with blood and brains.
落到了离他100尺远的地方,上面全是鲜血和脑浆。
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Now, not all Mycenaean sites are so far from the sea; some of them are closer, but what it's important to say is that none of them are right on the sea.
不是所有迈锡尼文明遗址都离海这样远,有些距海近些,但重点是,它们没有一个在海边
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How far am I from camp?"
我离营地有多远"
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And he's sitting kind of far away.
他坐得离你远了点。
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What I just spent many lectures discussing is the fact that we can not know how far away an electron is from the nucleus, so we can't actually know the radius of a certain atom.
我花了这么多课时所讨论的正是我们,不可能知道电子离原子核有多远这一事实，因此我们不可能知道某个原子的半径。
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Because we know as we go to infinity, even though the density gets smaller and smaller and smaller, we still have electron density very far away from the nucleus.
因为我们知道即使到了无穷远处，尽管电子密度会变得非常非常非常小，但我们仍然有一定的电子密度，无论离原子核多远。
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So this squared at the origin is going to be a very high probability, and it decays off as you get farther and farther away from the nucleus or from the center, and that's independent of the angle.
所以这个平方,在原点处非常高，随着离核子的距离,越来越远,它逐渐衰减，并且它和角度是没有关系的。
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This is because even though z, the atomic number is still increasing, we are also getting further away from the nucleus.
从有效核电量方面来想一想为什么，这是因为，尽管，Z，原子序数依然在变大，但我们同时也在离原子核越来越远。
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And when we talk about size, I'm again just going to say the stipulation we're not talking about an absolute classical concept here, but in general we're going to picture it being much further away from the nucleus as we move up in terms of n.
当我们说到尺寸时，我们只是说――,经典的绝对的概念，而是它大约,离原子核有多远。
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So, I want to contrast that with another concept that seemed to be opposing ideas, and that is thinking about not how far away the most probable radius is, but thinking about how close an electron can get to the nucleus if it's actually in that orbital.
我要将它和另外一个,看起来相反的概念相比较，我们不是考虑,最可能半径离原子核有多远，而是考虑如果电子在那个轨道上,能多接近原子核。
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It's not complete and it's not accurate, but it's OK to kind of think of it in terms of how far we're getting away from the nucleus.
这并不完整，也不精确，但是假如只是想想,我们在离原子核越来越远的话，还是没问题的。
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But the second factor is how far away we are from the nucleus.
但还有第二个因素,那就是我们离原子核有多远。
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Then the acceleration of the planet is the force of gravity between the planet and the Sun, which Newton will tell you is directed towards the Sun and it depends on how far you are.
行星的加速度源自,行星和太阳之间的作用力,牛顿认为这个力指向太阳,它的大小取决于行星离太阳有多远
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We're getting further away from the nucleus because we're jumping, for example, from the n equals 2 to the n equals 3 shell, or from the n equals 3 to the n equals 4 shell.
我们将会离原子核越来越远,因为我们在跃迁，比如从，n，等于，2，的壳层到n等于，3，的壳层，或者从，n，等于，3，的壳层到n等于，4，的壳层。
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