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And in the case of the 3 s orbital, that's going to be equal to 11 . 5 times a nought.
对于３ｓ轨道，它等于１１．５ａ０．
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a0 This is equal to a sub nought for a hydrogen atom, and we remember that that's just our Bohr radius, which is . 5 2 9 angstroms.
它等于,我们记得，这就是波尔半径,也就是0，529埃，实际上。
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And this is given a special symbol A nought.
而我们给它一个符号A上面加个。
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And the most probable one here is that a nought.
这个最可能的地方就是ａ０
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And what is discussed is that for a 1 s hydrogen atom, that falls at an a nought distance away from the nucleus.
我们讨论了对于氢原子１ｓ轨道，它的最可能半径在距离原子核ａ０处。
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And it turns out that for a 2 s orbital, that's equal to 6 times a nought.
对于２ｓ轨道，它等于６倍的ａ０
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And remember, a nought, that's just the Bohr radius, that's all we need to worry about.
记住ａ０就是波尔半径，我们要记住这点。
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9a0 And for the 3 s, 7 1a0 we have one at 1 . 9 a nought, and one at 7 . 1 a nought.
一个在，一个在，我们也可以确定。
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And basically, what that means is you can actually find an electron anywhere going away from the nucleus, a0 but you're most likely to find that you have the highest probability at a distance of a sub nought, or the Bohr radius.
它说明，虽然你可以,在任何地方,找到电子，但在距离为,或者波尔半径的地方,找到电子,的概率最大，我说过。
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s And what we find is we're going from about or exactly a 6 a nought here, to almost three times that when we're going from 2 s to 3 s.
从2s到,我们发现它，从6a0到大约增大了３倍。
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What we need to do is get rid of the Coulomb tag that we have - that's how we measure our electron charges - charge, and so we use this epsilon nought quite often, this permativity constant of a vacuum to make that conversion.
怎么量度电子电荷,所以我们会经常用到,这个epsilon，nought记号,这是真空中的介电常数,我们还要指出,这个介电常数。
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Yeah. This a sub nought.
嗯，这个a下标。
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