OK, elements with low average valence electron energy, and here I'm saying below 11 electron volts, these are good electron donors.

平均价电子能都较低的元素，我是指那些低于11电子伏的，这些是很好的电子给体。

麻省理工公开课 - 固态化学导论课程节选

I'm going to say that an electron's a wave no matter how much my father says differently, and I'm going to get a Nobel Prize for that, and he does.

我要说电子是一个波,无法这与我父亲的观点如何对立，我也要为此得到一个诺贝尔奖，他确实做到了。

麻省理工公开课 - 化学原理课程节选

Again, m is the mass of the electron.

其中，m是指电子的质量。

麻省理工公开课 - 固态化学导论课程节选

So, what I'm showing in this picture here is just an electron cloud that you can see.

你们可以看到我现在展示的这张图是,一个电子云。

麻省理工公开课 - 化学原理课程节选

So, let's go ahead and define our variables here, they should be familiar to us. We have the mass, first of all, me m is equal to m e, so that's the electron mass.

让我们继续定义这些常数,我们对这些应该都很熟悉了，首先，我们有质量，m等于。

麻省理工公开课 - 化学原理课程节选

And if we talk about electrons or photoelectrons, again we can describe it in terms of energy, we can talk about velocity, and from there, of course, you can figure out the energy from 1/2 m v squared, and actually we can also describe the electron in terms of wavelength.

如果我们谈论电子或者光电子，我们又可以从能量的角度来描述它，我们可讨论速率，从那里，当然，你可以计算1/2，m，v2得出能量值，而且事实上我们也可以,从波长的角度来描述电子。

麻省理工公开课 - 化学原理课程节选