So, by the same logic, that means that all of our positively charged ions are, in fact, going to be smaller in terms of radius, compared to their neutral parents.

那么，按照相同的逻辑，我们所有的正离子，事实上，它们的半径都会缩小，与它们的中性母体相比。

麻省理工公开课 - 化学原理课程节选

PROFESSOR: Yeah, that's right. So, what we have here, cathode rays we now know are negatively charged particles. And, in fact, he named these negatively charged particles. Does anyone know what he named them? No, not electrons - very good guess. He named them corpuscles.

学生：负电，教授：是的,我们现在知道，阴极射线是带负电的粒子,实际上他还给这些,带负电的粒子去了一个名字,有谁知道叫什么吗？

麻省理工公开课 - 化学原理课程节选