Only one Shortz Era entry found. Click the date to see the answer in context.
See the dictionary definition for THORON.
|Sunday, February 5, 1995||40D||Radon isotope||Frank A. Longo|
2 results for THORON from older pre-Shortz puzzles.
|Tuesday, October 3, 1989||41D||Radioactive isotope||Harold B. Counts||Maleska|
|Sunday, May 5, 1974||74D||Heavy gas||Louis C. Mandes Jr.||Weng|