电子亲和能反映的是气态原子结合电子的难易程度。元素的一个气态原子获得电子成为气态阴离子时所释放的能量称为电子亲和能，常用符号E表示。
亲和能
网络释义
... 根据资历和能力做工作和员工计划 work and staff planning according to qualification and capacity 亲和能 affinity 中和器；中和剂 neutralizer ...
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双语例句原声例句
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但是，电子亲和能既可以是负的，也可以是正的。
Electron affinity, however, can be either negative or it can be positive.
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这意味着氮的电子亲和能很低，它实际上并不愿意得到一个电子。
So this means nitrogen has low electron affinity, it doesn't actually want to gain an electron.
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要想答对这个问题，你只需要好好想一想，电子亲和能的真正意义。
To answer this question you just really want to think about what does electron affinity means.
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Electron affinity is actually the ability of an atom, or we could also talk about an ion to gain electrons.
电子亲和能其实就是一个原子，或者我们也可以讨论离子获取电子的能力。
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So, for example, for the chlorine case, we would say that the electron affinity for chlorine is actually positive 349 kilojoules per mole.
比如，以氯为例，我们可以说氯的电子亲和能,应该等于正的，349，千焦每摩尔。
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So do you think noble gases would have a high positive electron affinity, a low positive, or negative electron affinity?
那么，你认为稀有气体的电子亲和能,应该是一个高的正值，一个低的正值，还是一个负值？
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