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Neptunium
Neptunium

Curium
Curium



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Neptunium
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Facts About Neptunium and Curium

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Facts

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Who Discovered

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Abundance In Universe

Abundance In Sun

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Abundance In Humans

 
Neptunium was the first transuranium element to be discovered.
Made by Bombarding Uranium with Neutrons, Ores of metals
Edwin McMillan and Philip H. Abelson
In 1940
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  • Curium metal does not occur free in nature.
  • Curium metal is a synthetically produced metal.
Bombarding Plutonium with Helium Ions
Glenn T. Seaborg, Ralph A. James, Albert Ghiorso
In 1944
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