So, hopefully, you remember what we mean by valence electrons versus core electrons.

希望大家还记得，价电子与芯电子的定义。

youdao

The core electrons tend not to be involved in much chemistry in bonding or in reactions.

核电子倾向于不参与结合，或者反应。

youdao

And I want to point out the difference between core electrons and valence electrons here.

我想指出的是，核电子和价电子，之间的区别。

youdao

If we look at this configuration, what we say is all of the electrons in these inner shells are what we call core electrons.

如果我们看到这个构型，我们所说的是,所有的内层,都是核电子。

麻省理工公开课 - 化学原理课程节选

we very rarely would see these core electrons actually being involved in any type of a reaction.

我们极少见到芯电子,会参与任何类型的反应。

麻省理工公开课 - 化学原理课程节选

And I want to point out the difference between core electrons and valence electrons here.

我想指出的是,核电子和价电子,之间的区别。

麻省理工公开课 - 化学原理课程节选