So would you expect, therefore, as we go across a row for the atomic radius, to increase or to decrease? Good. OK, yes.

那么大家觉得，原子半径沿着某一行向右走，是会增大还是会减小呢？很好，不错，是的。

麻省理工公开课 - 化学原理课程节选

So, as we go down a column, we see ionization energy's going to decrease.

总之，当我们沿着列往下走的时候，我们会看到电离能在降低。

麻省理工公开课 - 化学原理课程节选