| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Thu, Jan 30, 2020 | 54D | Positive particle | Emily Carroll | Shortz |
| Thu, Jun 14, 2012 | 61A | Hydrogen has one | Tracy Gray | Shortz |
| Sun, Oct 10, 1999 | 6D | A hydrogen atom has one | Cathy Millhauser | Shortz |
| Tue, Feb 24, 1998 | 18D | Subatomic particle | Bill Ballard | Shortz |