It is a double column, You can see, it starts with hydrogen and goes to mercury in ascending order of atomic mass.

双纵栏，你们看到，从氢开始,然后到水银，按原子质量的升序排列。

麻省理工公开课 - 固态化学导论课程节选

In other words, these energy states are not filling just in ascending n number.

也就是说，能态不只是,按照n的升序进行排列的。

麻省理工公开课 - 固态化学导论课程节选