Answer:
I personally have a method for learning stuff like this.
Try going one at a time, and ever once in awhile. Like memorize the first element, then the one next to it [in whichever order you please]
Ex: memorizing 1-10
1.. 1,2.. 1,2,3.. 1,2,3,4..
And then repeat that row until you can recite it almost without hesitation, then move onto another line.
This works for both placement memorization and element name.