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neptunium
Periodic Table of the Elements: Neptunium
Periodic Table of the Elements: Neptunium
| Periodic Table of the Elements: Neptunium |
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| Atomic Number:
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93
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| Atomic Symbol:
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Np
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Neptunium
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| Atomic Weight:
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237.0482
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| Electron
Configuration:
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2 · 8 · 18
32 · 22
9 · 2
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Cite this article
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Paducah, Ky., Plant's Neptunium Raises Radiation-Exposure Concerns.
Newspaper article from: Knight Ridder/Tribune Business News; 9/30/1999; ; 700+ words
; ...Tribune Business News Sep. 30 -- Neptunium, not plutonium, was the greatest concern...Paducah indicates there was much more neptunium than plutonium, said Dr. David Michaels...I have been focused very much on the neptunium, and it's a little dismaying to me...
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Little-studied metal goes critical. (Neptunium Nukes?).
Magazine article from: Science News; 10/26/2002; ; 700+ words
; ...first created the artificial element neptunium in 1940, around the time they made the...researchers have paid scant attention to neptunium. Now a team at Los Alamos (N.M.) National Laboratory has measured how much neptunium it would take to make a bomb--the...
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Explosive secrets.(it has been widely known that plutonium and enriched uranium can be used to make nuclear weapons, but it also possible to make such a weapon using neptunium and americium )(Brief Article)
Magazine article from: Bulletin of the Atomic Scientists; 3/1/1999; ; 700+ words
; ...nonproliferation should also be concerned about the neptunium and americium found in nuclear waste streams, because...States and France have tested nuclear devices using neptunium 237. Neptunium and americium--man-made materials produced...
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United States: SRS has finished neptunium project.
News Wire article from: TendersInfo; 4/1/2009; 700+ words
; Byline: kusumv03 The last of the neptunium inventory at the Department of Energys Savannah...plutonium-238. Now, its through production of neptunium-237 oxide. The means to produce more neptunium does not exist, and this national asset is...
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NEPTUNIUM EXPOSURE EVIDENCE IGNORED
News Wire article from: United Press International; 10/29/2001; 524 words
; ...United Press International 10-29-2001 Neptunium exposure evidence ignored PADUCAH, Ky...evidence workers had been exposed to neptunium in 1961. The Louisville (Ky.) Courier...exposure. The workers handled plutonium and neptunium, which both interfere with blood cell...
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Neptunium exposure evidence ignored.
News Wire article from: United Press International; 10/29/2001; 634 words
; ...Plant reportedly ignored evidence workers had been exposed to neptunium in 1961. The Louisville (Ky.) Courier-Journal reported...acceptable levels of exposure. The workers handled plutonium and neptunium, which both interfere with blood cell production. The two...
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Exotic materials using neptunium, plutonium provide insight into superconductivity.
Newspaper article from: NewsRx Science; 8/18/2008; 700+ words
; ...vanishes u by studying exotic chemical compounds that contain neptunium and plutonium. While superconductivity holds promise for...are made out of elements in the actinide series, including neptunium and plutonium. In these materials, active electrons are...
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Research conducted at S. Ng and co-authors has provided new information about nuclear technology.
Newspaper article from: Journal of Technology; 11/11/2008; 631 words
; ...study from Paris, France, "Introducing neptunium into the nuclear fuel cycle has been...scenarios are considered: (a) adding neptunium to fresh uranium oxide (UOX) fuel before...reactor (LWR) and (b) separating neptunium together with plutonium from used UOX...
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South Carolina nuclear plant's radioactive waste will be sent to Idaho.
Newspaper article from: Knight Ridder/Tribune Business News; 8/17/2004; 608 words
; ...producing about 250 kilograms of radioactive neptunium 237 despite a decision to alter where...which was selected in 2001 to receive the neptunium, did not have the security safeguards...will have no effect on the production of neptunium 237 at SRS, said Fran Poda, a spokeswoman...
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COMPENSATION FOR CANCER-RELATED DISEAS OF ENERGY DEPARTMENT:MR. LEON OWENS WORKERS
Transcript from: Congressional Testimony; 11/21/2003; 700+ words
; ...substances, particular plutonium and neptunium, for over 40 years without ever knowing...uranium dusts laced with plutonium-239, neptunium-237, and technetium-99. Until a...the PGDPs maximum permissible level for neptunium-237. When the PGDP Health Physics...
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Neptunium (revised)
Book article from: Chemical Elements: From Carbon to Krypton
NEPTUNIUM (REVISED) Note: This article, originally...2006 for the eBook edition. Overview Neptunium lies in Row 7 of the periodic table...elements are related to one another. Neptunium is the first transuranium element. The...
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Neptunium
Book article from: Chemistry: Foundations and Applications
Neptunium melting point: 640 ° C boiling...or NpO 2 + , NpO 2 2+ , NpO 3 + Neptunium was discovered by the U.S. physicists...element is related to the planet Neptune. Neptunium-237 occurs as a product of 238 U fission...
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neptunium
Book article from: The Columbia Encyclopedia, Sixth Edition
neptunium , radioactive chemical element; symbol...valence +3, +4, +5, or +6. Neptunium is a ductile, silvery radioactive metal...series in Group 3 of the periodic table . Neptunium has three distinct forms (see allotropy...
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Periodic Table of the Elements: Neptunium
Book article from: The Columbia Encyclopedia, Sixth Edition
Periodic Table of the Elements: Neptunium Periodic Table of the Elements: Neptunium Atomic Number: 93 Atomic Symbol: Np Neptunium Atomic Weight: 237.0482 Electron Configuration: 2 · 8 ·...
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Plutonium (revised)
Book article from: Chemical Elements: From Carbon to Krypton
...discovered the first transuranium element, neptunium (atomic number 93). The neptunium they produced was radioactive. They predicted...1912- ), that he continue their research on neptunium. Seaborg and his associates picked up where...
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