You have 15 minutes to name all the elements.
That was hard. I’m embarrassed by my poor performance, so I won’t share it. After the 2 minute mark I came up empty.
I just saw the United States test where you get 10 minutes to name all 50 states. While I didn’t get all of them, it’s way easier than the elements.
I believe that the most difficult would be 105-118 as they were not official when we were in HS. That is tough though there are so many with peculiar spellings and that counts.
I didn’t even know I had an excuse for not knowing them. :)