uranium

Physics Science 10 of 10 appearances
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"uranium" appearances by year

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All Physics clues by year

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# Clue Answer As Given Value Round Category Air Date Show
Before this element can be used in a fission reactor, it has to be enriched to increase the level of its 235 isotope uranium $800 DJ PHYSICS 2016-12-27 #7432
In 1938 Otto Hahn & Fritz Strassman discovered nuclear fission by splitting atoms of this element uranium $200 J PHYSICS 2005-07-22 #4825
Chemical symbol U, this metallic element is used as a fuel in nuclear reactors & weapons uranium $1,200 DJ NUCLEAR PHYSICS 2004-05-14 #4545
This radioactive metal is the heaviest naturally occuring element Uranium $800 DJ PHYSICS 1996-11-20 #2813
In 1938 a sample of this element symbolized U was split into smaller barium atoms uranium $600 DJ NUCLEAR PHYSICS 1994-11-09 #2343
In 1896 Antoine Becquerel first noticed radiation from this element uranium $400 DJ NUCLEAR PHYSICS 1992-05-04 #1781
Isotopes of this element are the most commonly used nuclear fuel in reactors uranium $1,000 DJ NUCLEAR PHYSICS 1990-07-28 #7
If present use rate continues, the 235 isotope of this element will become scarce during the 1990s uranium $200 J NUCLEAR PHYSICS 1989-05-09 #1092
Martin Klaproth named this element he discovered in 1789 in honor of a planet found 8 years earlier uranium $600 DJ NUCLEAR PHYSICS 1989-02-15 #1033
Only material occuring in nature that is readily fissionable is an isotope of this uranium $400 J NUCLEAR PHYSICS 1986-11-14 #505
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