If I look at something that goes as n squared, if this is the edge of the nucleus here and if this is r1, 4 it says when n goes to two the radius goes to four.

如果在原子核外侧,我们发现某一半径和n的平方成正比，也就是说当n为2时半径等于。

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' So the rock 'n' roll edge, having a rock guitar, was kind of the icebreaker to say we're familiar.

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