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15 results for ISOTOPES

9 Shortz Era entries found. Click any date for context.
See the dictionary definition for ISOTOPES.

Sunday, August 14, 20164DUranium 238 and strontium 90Ian Livengood
Wednesday, May 11, 201636DDeuterium and tritiumPawel Fludzinski
Monday, November 28, 20115DSpringfield's minor-league team on "The Simpsons"Andrea Carla Michaels
Friday, June 3, 201163AChemist's relatives?Jeffrey Wechsler
Wednesday, May 5, 201058ACarbon 14 and uranium 235Dan Schoenholz
Tuesday, March 1, 200555ADeuterium and tritium, to hydrogenGilbert H. Ludwig
Monday, July 10, 200010DSome are radioactiveGene Newman
Tuesday, June 4, 199637DAtoms with the same number of protonsE. Early
Monday, September 25, 199543DCarbon 14 and othersGregory E. Paul

1 result for ISOTOPES from Variety puzzles.

July 27, 2014acrosticURelatives of a fundamental sortEmily Cox & Henry Rathvon

5 results for ISOTOPES from older pre-Shortz puzzles.

Friday, December 15, 198940DProtium and tritium, e.g.Jim PageMaleska
Thursday, December 13, 19734DU 235 et al.UnknownWeng
Friday, April 3, 195341DElements having the same atomic number.Roberta MorseFarrar
Monday, January 19, 195320ABasis of most chemical elements.George HendersonFarrar
Sunday, August 27, 195042DForms of elements having same atomic number.Harold T. BersFarrar