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That is going to equal the energy of the electrons in H2 minus the energies of the electrons in H.
这等于H2分子的能量2,减去H原子中电子的能量。
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For example, H2, N2, they are going to share the electrons uniformly, equally.
比方说，氢气，氮气，他们都无差别的，完全等价地共享电子。
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H2 So the simplest case we can think of is with h 2 where we have two unpaired electrons, each in a 1 s orbital of a separate h atom.
最容易想到的例子是2,我们有两个未配对电子，每个都在一个分开的1s轨道上。
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H2 The label above this figure refers to H2.
这个数字上的符号是。
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Whereas, H2 is nonpolar.
但是，氢气是非极性的。
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And then over here is H2.
组合成氢气。
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All right, so it looks like we weren't showing the percentages here, but it looks like hopefully most of you were able to get the correct answer of H2 being the limiting reactant.
看来我们好像没办法,显示结果的比例，但看起来大部分人,都能得到正确的结果,那就是H2是受限制的反应物2,看来现在我们还没搞明白。
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So, if we take h 2, and we want to draw the electron configuration, it's very short.
如果我们取h2，我们要画电子构型，这很简单。
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Later on, we'll learn that hydrogen as we typically encounter it is H2, the molecule.
之后我们知道,氢气是H2，是一个分子。
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What is the energy change going from two atomic hydrogens to one H2?
什么是能量的改变,从两个原子氢到H2分子？
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The question now is, is H2 stable or will it not form?
现在的问题是，H2稳定吗，它到底会不会形成？
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And if we picture those two coming together, we form the h 2 molecule.
如果我们想象它们两个靠近时，我们会形成H2分子。
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What about H2 plus? What would that look like?
那么H2+呢，这看起来像什么呢？
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This is the energy level diagram of H2.
这是H2的能级图。
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