| # | Clue | Answer As Given | Value | Round | Category | Air Date | Show |
|---|---|---|---|---|---|---|---|
| In the 1860s John Newlands arranged the 56 known these according to a soon-discredited "Law of Octaves" | elements | $400 | J | SCIENCE: MISSED IT BY THAT MUCH | 2024-07-25 | #9154 | |
| Albert Ghiorso at Lawrence Berkeley National Lab holds the record for discovering the most of these | elements | $600 | J | SCIENCE | 2005-01-24 | #4696 |