deuterium

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"deuterium" appearances by year

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All Science clues by year

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# Clue Answer As Given Value Round Category Air Date Show
D2O, or heavy water, combines oxygen with this isotope that is twice as heavy as hydrogen deuterium DD $2,000 DJ SCIENCE QUIZ 2024-06-05 #9118
(Kelly of the Clue Crew delivers the clue from the lab.) Normally, an ice cube floats; this one, however, sinks right to the bottom because it's made of heavy water, or D2O; the D standing for this isotope deuterium $600 J SCIENCE 2007-07-12 #5274
Hydrogen has 3 isotopes: protium, tritium & this one with a mass number of 2 deuterium DD $1,000 DJ GENERAL SCIENCE 1997-09-10 #2993
Harold Urey won a 1934 Nobel Prize for his discovery of this isotope, also called heavy hydrogen deuterium $500 J GENERAL SCIENCE 1994-07-04 #2281
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