We can actually have any radius, but some radii just have much, much smaller probabilities of actually being significant or not.

非常非常小，以至于,无关紧要,我们今天。

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r+ And let's say that sodium has a radius, r plus, r- and chlorine has a radius, r minus, when r is very large in comparison to the radii of the ions, I don't need to draw them this way.

让我们假设钠有半径，是，氯也有半径，是，当r比离子半径大很多的时候，我不需要这样来描述。

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