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Plutonium (Michael Freeman/Corbis)

Plutonium, symbol Pu, radioactive metallic element that is used in nuclear reactors and nuclear weapons. The atomic number of plutonium is 94. The...

Atomic Bomb, use of plutonium

Atomic Bomb, use of plutonium (The National Archives/Corbis)

Atomic Bomb, powerful explosive nuclear weapon fueled by the splitting, or fission, of the nuclei of specific isotopes of uranium or plutonium in a...

Breeder reactors, use of plutonium

The key feature of a breeder reactor is that it produces more fuel than it consumes. It does this by promoting the absorption of excess neutrons in a...

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- silvery radioactive metallic element: a highly toxic silvery radioactive metallic element.

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	Windows Live® Search Results Plutonium - Wikipedia, the free encyclopedia Plutonium (pronounced /pluːˈtoʊniəm/, symbol Pu, atomic number 94) is a rare radioactive, metallic chemical element. The most significant isotope of plutonium is 239 Pu, with a ... plutonium - Definitions from Dictionary.com Definitions of plutonium at Dictionary.com. ... a transuranic element with a fissile isotope of mass number 239 (plutonium 239) that can be produced from non-fissile uranium 238 ... Plutonium Clothing Collection ; Bridal ; Information ; Contact ; Plutonium Clothing showcases the fabulous custom clothing, wedding and special occasion dresses, and costumes by artist / designer ... See all search results in Windows Live® Search Results

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