| Question 1: An ensuing arms race during the ________ between the United States and the Soviet Union produced tens of thousands of nuclear weapons that used enriched uranium and uranium-derived plutonium. | |||
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| Question 2: Uranium can be decontaminated from steel surfaces[73] and ________. | |||
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| Question 3: The uranium nucleus binds between 141 and 146 ________, establishing six isotopes, the most common of which are U-238 (146 neutrons) and U-235 (143 neutrons). | |||
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| Question 4: [62] A few ________ and semi-metallic compounds such as UO and US exist for the formal oxidation state uranium(II), but no simple ions are known to exist in solution for that state. | |||
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| Question 5: Uranium-238 is an α emitter, decaying through the 18-member uranium natural ________ into lead-206. | |||
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| Question 6: [8] Uranium metal has very high ________, being approximately 70% denser than lead, but slightly less dense than gold. | |||
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| Question 7: Uranium carbides and uranium nitrides are both relatively inert semimetallic compounds that are minimally soluble in ________, react with water, and can ignite in air to form U3O8. | |||
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| Question 8: [8] Yellow glass with 1% uranium oxide was found in a Roman villa on Cape Posillipo in the Bay of Naples, ________ by R. | |||
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| Question 9: During the later stages of World War II, the entire ________, and to a lesser extent afterwards, uranium has been used as the fissile explosive material to produce nuclear weapons. | |||
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| Question 10: ________ and her nephew, physicist Otto Robert Frisch, published the physical explanation in February 1939 and named the process 'nuclear fission'. | |||
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