Talk:Isotopes of neptunium

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 * Added archive https://web.archive.org/web/20110519171204/http://ec.europa.eu/energy/nuclear/transport/doc/irsn_sect03_146.pdf to http://ec.europa.eu/energy/nuclear/transport/doc/irsn_sect03_146.pdf
 * Corrected formatting/usage for http://www.sciencenews.org/view/generic/id/3246/title/Neptunium_Nukes%3F_Little-studied_metal_goes_critical
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 * Added archive https://web.archive.org/web/20080923135135/http://www.nndc.bnl.gov/amdc/nubase/Nubase2003.pdf to http://www.nndc.bnl.gov/amdc/nubase/Nubase2003.pdf

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Neptunium 219
http://www.sciencedirect.com/science/article/pii/S0370269317309942 half-life of 0.15ms (= -0.07 +0.72) This needs adding to the table. — Preceding unsigned comment added by 92.11.246.147 (talk) 16:11, 23 December 2017 (UTC)
 * Will take a look (and has the gap from 220 to 224 inclusive been filled yet?). Double sharp (talk) 10:51, 12 February 2018 (UTC)

234Np: Spin 0+?
That looks impossible as 234Np is an odd-odd nuclide. 129.104.241.214 (talk) 17:01, 6 March 2024 (UTC)


 * 34Cl also has 0+ spin. How is it impossible? Nucleus hydro elemon (talk) 15:34, 7 March 2024 (UTC)
 * Thanks for the reminder. I had always thought that the spin of an odd-odd nuclide can't be zero, as it is stated here: "If the numbers of protons and neutrons are both odd, the ground state nuclear spin is an integer larger than zero" ... 129.104.241.214 (talk) 03:43, 10 March 2024 (UTC)
 * Ah, I found that 50Mn, 60Mn, 54Co, 74Co, 62Ga, 64Ga, 66Ga, 64As, 66As, 70Br, 74Rb, 74Rb, 78Y, 82Nb, 86Tc, 90Rh, 94Ag, 98In, ... also have spin 0+. This includes N = Z nuclides for odd Z = 17 and 25 through 49 (except 29). 129.104.241.214 (talk) 03:55, 10 March 2024 (UTC)

Contradictions regarding Np-237
The section Isotopes_of_neptunium implies Np-237 decay doesn't involve gamma ray emission, but the section Isotopes_of_neptunium includes a decay scheme showing gamma emissions at 29 KeV and 86 KeV. 2603:8080:E500:161F:24AA:52BD:4E5C:B896 (talk) 18:59, 28 June 2024 (UTC)