And in terms of doing this for your homework, I actually want to mention that in the back page of your notes I attached a periodic table that does not have electron configurations on them. It's better to practice doing electron configurations when you cannot actually see the electron configurations.

关于你们的作业，是在你们讲义的后面的页,我附上了一张,没有给出电子构型的周期表,最好联系一下做出电子构型,当你们实际上看不到,电子构型的时候。

麻省理工公开课 - 化学原理课程节选