• Neptunium - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Neptunium Neptunium is a chemical element with symbol Np and atomic number 93. A radioactive actinide metal, neptunium is the first transuranic element. Its position in the ...
  • Neptunium - Chemicool

    www.chemicool.com/elements/neptunium.html Neptunium was the first synthetic transuranium element (elements after uranium) of the actinide series to be discovered. Neptunium was first produced by Edwin ...
  • Neptunium»the essentials [WebElements Periodic Table]

    www.webelements.com/neptunium Neptunium is a radioactive rare earth metal and has at least 3 allotropic forms. It is named for the planet Neptune. Np-237 is a by-product from nuclear reactors.
    • It's Elemental - The Element Neptunium - Jefferson Lab

      education.jlab.org/itselemental/ele093.html What's in a name? Named for the planet Neptune. Say what? Neptunium is pronounced as nep-TOO-nee-em. History and Uses: Neptunium was first produced by Edwin M ...
    • Chemical Elements.com - Neptunium (Np)

      www.chemicalelements.com/elements/np.html I currently do not know of any links for Neptunium. If you do, please let me know MLA Format for Citing This Page Bentor, Yinon. Chemical Element.com - Neptunium.
    • Periodic Table of Elements: Los Alamos National Laboratory

      periodic.lanl.gov/93.shtml Neptunium, forming dioxo-neptunyl ions (NpO 2 n+) in its 5+, 6+ and 7+ oxidation states, which readily complex with hard oxygen-donor ligands such as OH –, NO 2 ...