We talked about this reaction here where we had chloride ion in the gas phase plus sodium ion in the gas phase.

我们在讨论这一个反应,我们有气相的氯原子,与气相的钠原子接触。

麻省理工公开课 - 固态化学导论课程节选

We started with gaseous sodium to make gaseous sodium ion and gaseous atomic chlorine to make gaseous chloride ion through electron transfer.

我们从气态的钠开始,得到气态的钠离子,从气态的氯原子,通过电子转移得到氯离子。

麻省理工公开课 - 固态化学导论课程节选

So now, let's get a sodium here, and the chloride ion next to it to the point where they are touching.

所以，我们要有一个钠离子，和氯离子放在,相互接触的一个点上。

麻省理工公开课 - 固态化学导论课程节选

And, we're going to look at what happens as the chloride ion moves from infinity in towards the positive ion.

然后我们要看一下,当氯离子从无限远处逐渐靠近,这个正离子会发生什么。

麻省理工公开课 - 固态化学导论课程节选

So, this is the chloride ion. It's over here.

这是氯离子，把它放这儿。

麻省理工公开课 - 固态化学导论课程节选

So, for example, in an electrochemical cell, it would be possible to take the sodium ion, give back its electron, and convert it into a metallic sodium, take the chloride ion, remove its electron, and restore chlorine gas.

所以，例如一个电化学的电池，它可能带有钠离子，让它得到电子，把它变成金属钠，得到氯离子，让它失去电子，作为氯气储存。

麻省理工公开课 - 固态化学导论课程节选

So, for example, if I have a sodium ion over here, and I have a chloride ion over here, where the distance from center to center r I'm denoting as r, this is nucleus to nucleus separation.

所以，比如这有一个钠离子，和一个氯离子，它们中心与中心间的距离,我把它设为，这是原子核和原子和的间距。

麻省理工公开课 - 固态化学导论课程节选