If another photon strikes one of these high-energy electrons, the electron releases two photons that travel together at the same wavelength.

VOA: special.2010.09.01

And, at the other extreme, we have elements with very high value, elements with high average valence electron energy.

另外，在另一端，我们有原子序数较大的元素，这些元素有着较高的平均化合价和电子能。

麻省理工公开课 - 固态化学导论课程节选

And, in fact, if any electron comes in their midst, they'll capture it because the binding energy is so high.

事实上，如果电子从中间进来，它们会捕获它,因为束缚能是如此之大。

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If something has a high ionization energy, it means that it really, really, really does not want to give up an electron.

如果某个东西有很高的电离能，这意味着它非常非常，非常不愿意失去一个电子。

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0eV This is almost 20 eV, high average valence electron energy, greater than 13 electron volts.

它的价电子能是，这是很高的价电子能，比13电子伏要高。

麻省理工公开课 - 固态化学导论课程节选

So if we think about the upper right hand part of the quadrant, well, this is where we're going to have high electron affinity and high ionization energy, so we're also going to see high electronegativity here.

那么让我们来看看右上方的部分，好，在这里我们将会有高的电子亲和能,与高的电离能，因此我们会看到这里的电负性也很高。

麻省理工公开课 - 化学原理课程节选

And up in the other extreme are elements with very high average valence electron energy.

和那些特别元素,它们具有很好的平均价电子能。

麻省理工公开课 - 固态化学导论课程节选

Chlorine has a high valence electron energy.

氯的价电子能很高。

麻省理工公开课 - 固态化学导论课程节选

we start high and go low, we're dealing with emission where we have excess energy that the electron's giving off, and that energy is going to be equal the energy of the photon that is released and, of course, through our equations we know how to get from energy to frequency or to wavelength of the photon.

当我们从高到低时，我们说的,是发射,电子有多余的能量给出，这个能量等于，发出,光子的能量，当然我们可以通过方程,从能量知道，光子的频率，和波长。

麻省理工公开课 - 化学原理课程节选