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。
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。
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。
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?
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
Or you start getting farther and farther away from Manhattan,
离曼哈顿越来越远的地方,
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。
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
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。
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。
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。
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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