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Neptunium   Listen
noun
Neptunium  n.  A radioactive metallic element of atomic number 93, produced in nuclear reactors from Plutonium or Uranium. Symbol Np; The atomic weight of the most stable isotope is 237.0482.





Collaborative International Dictionary of English 0.48


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Words linked to "Neptunium" :   metallic element, np, atomic number 93, metal


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