So, that also tells us that the n minus ion is less stable than the neutral atom itself.
而且,这还告诉我们,负一价的氮离子不如中性氮原子稳定。
So chlorine, if we talk about it in terms of electron affinity, we would be writing that we're actually gaining an electron here, and getting the ion, c l minus.
那么,氯,如果我们要讨论它的电子亲和能,我们会假设它真的得到了,一个电子而变成离子,负一价的氯。
When you add this whole thing up, -411kJ/mol it gives you a net of minus 411 kilojoules per mole or about 4 eV per ion pair.
当你全部加上时,得到净能量,或者是4eV每个离子对。
So, let's try another example here, and let's try a case now where instead of dealing with a neutral molecule we have an ion, so we have c n minus.
那么,让我们来试一下另外一个例子,这次不是一个中性原子,而是一个离子,氰离子。
We can write out what it is for any certain atom or ion x, X so it's just x plus an electron gives us x minus.
我们可以用,X,来表示一个任意的原子或离子,因此可以写成,X,加一个电子等于负一价的。
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