| 2026-07-26 | Gold or silver, but not bronze |
| 2026-03-04 | Mercury, but not Venus |
| 2025-08-12 | He or I, but not she |
| 2025-05-22 | Palladium, e.g. |
| 2022-08-21 | Erbium, terbium or ytterbium |
| 2021-10-12 | One of more than 115 on a table |
| 2021-08-26 | U, V, W or Y, but not X |
| 2021-04-02 | He or I, but not you? |
| 2017-10-10 | The answer to each clue that says "This, on the periodic table" |
| 2013-10-30 | Something found on a chemist's table |
| 2013-03-24 | One of over 100 on a table |
| 2010-12-05 | Honda model |
| 2010-04-14 | Gold or silver, but not bronze |
| 2009-04-10 | Electric device with terminals |
| 2009-02-08 | Mercury, e.g. |
| 2008-02-09 | Factor |
| 2007-04-05 | Honda model |
| 2005-12-17 | Normal habitat |
| 2005-08-28 | Copper or nickel |
| 2004-07-18 | Mercury, for one |
| 2002-07-25 | It's found in a table |
| 2000-10-11 | Nickel, but not dime |
| 2000-10-07 | Natural setting |
| 1999-07-04 | Sodium or chlorine |
| 1998-09-27 | Milieu |
| 1997-12-27 | Part of a table? |
| 1997-07-15 | Earth, wind or fire |
| 1997-04-25 | Nickel, e.g. |
| 1997-02-14 | Natural habitat |
| 1996-05-29 | It may be found in a table |
| 1995-07-28 | He or I may represent one |
| 1994-04-28 | Natural habitat |