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Neptunium - Wikipedia, the free encyclopedia
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This WebElements periodic table page contains Essential information for the element neptunium ... Brief description: 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.
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Comprehensive information for the element Neptunium - Np is provided by this page including scores of properties, element names in many languages, most known nuclides and technical terms are linked to their definitions. ... Element Neptunium - Np...
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About This Site; Comments; Help; Links; ... Show Table With: Name; Atomic Number; Atomic Mass; Electron Configuration; Number of Neutrons; Melting Point; Boiling Point; Date of Discovery; Crystal Structure; ... I currently do not know of any links for Neptunium. If you do, please let me know;
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Isotopes of neptunium - Wikipedia, the free encyclopedia
Neptunium ( Np ) has no stable isotopes. A standard atomic mass cannot be given. 19 neptunium radioisotopes have been characterized, with the most stable being 237 Np with a half-life of 2.14 mil...
en.wikipedia.org/wiki/Isotopes_of_neptunium |
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The Element Neptunium - Basic Physical and Historical Information ... The Element Neptunium; [Click for Isotope Data] ... Neptunium was first produced by Edwin M. McMillian and Philip H. Abelson, working at the University of California, Berkeley, in 1940. They produced neptunium-239, an isotope of neptunium with a half-life...
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Discovered : by E.M. McMillan and P. Abelson in 1940; Isolated in Berkeley, California, USA; Origin : The element is named after the planet Neptune. Description : An artificially made radioactive metal that is extracted in kilogram quantities from spent uranium rods from nuclear reactors. Image : Neptune's trident.
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