Answer: isotope

AnswerCrossword Clue
ISOTOPEChemical phenomenon.
ISOTOPELiterally, "same place"
ISOTOPEHelium-3, e.g.
ISOTOPEElemental form
ISOTOPEU-238, for one
ISOTOPEElement having same atomic number as another.
ISOTOPEElement resembling another in atomic number but not weight.
ISOTOPEElement resembling another in atomic structure.
ISOTOPEForm of a chemical element.
ISOTOPEOak Ridge output.
ISOTOPEUseful form of a chemical element.
ISOTOPEI-131, for one
ISOTOPEOne of several elements, having the same atomic number.
ISOTOPEWord used in Oak Ridge.
ISOTOPEElement much like another.
ISOTOPEUranium 238, for instance.
ISOTOPEAtomic age word.
ISOTOPEU 235 or U 238, for example.
ISOTOPEWord in atomic terminology.
ISOTOPEAtomist's concern.
isotopea form of an element
ISOTOPETritium, to hydrogen
ISOTOPEMolecular relative
ISOTOPEAtomic relative
ISOTOPEChemical relative
ISOTOPEUranium 238, e.g.
ISOTOPECarbon 13, e.g.
ISOTOPEChemistry subject
ISOTOPEUranium-238, e.g.
ISOTOPEElemental variant
ISOTOPECarbon-14, e.g.
ISOTOPEElement variant
ISOTOPEHeavy hydrogen, e.g.
ISOTOPECarbon 13 or cobalt 60
ISOTOPECarbon 12 or cobalt 60
ISOTOPEChemical cousin
ISOTOPECarbon 12, e.g.
ISOTOPEDating material
ISOTOPEOne of an element's closely related atoms
ISOTOPEChemist's study