And as it breaks down, it naturally releases nitrogen into the soil.

VOA: special.2010.06.01

4 6 Just as in nitrogen, we get two, four, six here, but now we have two more electrons.

对于氮，我们有，但是现在我们有两个多的电子。

麻省理工公开课 - 固态化学导论课程节选

We know that ionization energy is going to increase as we go across the periodic table, so that means carbon has a lower ionization energy than nitrogen which is right next to us.

我们知道电离能会随着周期表,向右而逐渐变大，因此碳的电离能比旁边的氮要低一些,那么就像我说的。

麻省理工公开课 - 化学原理课程节选

Let's look at nitrogen to see if it applies there as well.

让我们看看此原理是否适用氮气。

麻省理工公开课 - 固态化学导论课程节选

But, as you know, air is only 20% oxygen, the balance being nitrogen.

但是你知道空气中只有20%的是氧气，大部分的是氮气。

麻省理工公开课 - 固态化学导论课程节选

So, let's, for example, look at nitrogen. So n 2, we can do the chart here in green, so it's the green dotted line, and what we see is that we have now defined this energy as where the 2 nitrogen atoms are separated.

那么，让我们举个例子，看一下氮，那么氮分子，我们可以把它用绿色曲线画在这，这是绿色的虚线，可以看到,我们已经定义为零点能，当两个氮原子分离时。

麻省理工公开课 - 化学原理课程节选