The existence of nitrate had an inhibitory effect on p-NCB reduction because of competition for electron donor between nitrate and p-NCB.

水中的硝酸盐和对硝基氯苯对电子供体存在竞争，硝酸盐反硝化对对硝基氯苯还原具有抑制作用。

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So for example, if we think about fluorine, 1 s 2 2 s 2 2 p 5 that has an electron configuration of 1 s 2, 2 s 2, 2 p 5, so all we would need to do is add one more electron to get the same configuration as for neon.

比如，如果我们考虑氟原子的话，它的电子排布是，因此我们所需要做的就是给它加上一个电子,使得它与氖原子的电子排布相同。

麻省理工公开课 - 化学原理课程节选

s 2 2 s 2 2 p 6 This has the electron configuration of 1 s 2, 2 s 2, and 2 p 6.

它的电子排布是。

麻省理工公开课 - 化学原理课程节选

The same thing when you're going from filling in the 2 s to putting that first electron into the 2 p.

当你填满，2，s，后再往，2，p，中,放第一个电子的时候就会发生这种问题。

麻省理工公开课 - 化学原理课程节选