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 was the first synthetic transuranium element (elements after uranium) of the actinide series to be discovered. Neptunium was first produced by Edwin ...
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.
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 ...
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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 ...
NEPTUNIUM (REVISED) Note: This article, originally published in 1998, was updated in 2006 for the eBook edition. Overview. Neptunium lies in Row 7 of the periodic table.
Element Neptunium (Np), Group 20, Atomic Number 93, f-block, Mass . Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.
C20: from Neptune ², the planet beyond Uranus, because neptunium is the element beyond uranium in the periodic table
Word origin: Neptunium is named after the planet Neptune, which is named for the Roman god of the sea. Neptune is the next planet out from the sun from Uranus, and ...