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  2. Synthesis of precious metals - Wikipedia

    en.wikipedia.org/wiki/Synthesis_of_precious_metals

    The radioactivity in MBq per gram of each of the platinum group metals which are formed by the fission of uranium. Of the metals shown, ruthenium is the most radioactive. Palladium has an almost constant activity, due to the very long half-life of the synthesized 107 Pd, while rhodium is the least radioactive.

  3. Synthetic element - Wikipedia

    en.wikipedia.org/wiki/Synthetic_element

    Plutonium (Pu, atomic number 94), first synthesized in 1940, is another such element. It is the element with the largest number of protons (atomic number) to occur in nature, but it does so in such tiny quantities that it is far more practical to synthesize it. Plutonium is known mainly for its use in atomic bombs and nuclear reactors. [4]

  4. Plutonium - Wikipedia

    en.wikipedia.org/wiki/Plutonium

    Plutonium–gallium–cobalt alloy (PuCoGa 5) is an unconventional superconductor, showing superconductivity below 18.5 K, an order of magnitude higher than the highest between heavy fermion systems, and has large critical current. [46] [50] Plutonium–zirconium alloy can be used as nuclear fuel. [51]

  5. From Seagull Poop to Plutonium: The Most Valuable ... - AOL

    www.aol.com/gold-caviar-most-valuable-substances...

    15. Plutonium. Cost: $4,400-$5,600 per gram. The devastating power of nuclear weapons, such as those used on Japan in World War II, probably makes plutonium more well-known than it otherwise might be.

  6. List of Metal Men members - Wikipedia

    en.wikipedia.org/wiki/List_of_Metal_Men_members

    The real Doc Magnus and the Metal Men battled one of the robots each and mutually destroyed each other. Platinum takes the Doc Robot and Plutonium robots to the Moon, where Plutonium is detonated. Aluminum Barium Calcium Plutonium Sodium Zirconium Platinum II Metal Men #3 (August–September 1963) An unsuccessful recreation of Platinum (Tina ...

  7. 'Pawn Stars:' Why a rare coin worth six figures sold for much ...

    www.aol.com/entertainment/2014-12-12-pawn-stars...

    On History Channel's hit show "Pawn Stars," a man came in to sell a 1907 Saint-Gaudens double eagle $20 gold coin. The coins are extremely rare, and some of them have sold for more than $1 million ...

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