Talk:Table of nuclides

This is the centralized talk page for the article Table of nuclides and the following other articles:
Table of nuclides (combined), Table of nuclides (segmented, narrow) and Table of nuclides (segmented, wide).

An overview of the template structure used in the articles can be found on Category:Isotope tables templates.

New business (After Quilbert’s revisions via templates)

Chart images

Something is clearly off about the current versions of the nuclide charts. The top, segmented chart shows the blue color for beta+/EC decay above the midline and the pink color for beta- decay below, whereas the bottom, combined chart reverses them. The Commons versions of the two images ([1] and [2] respectively) both show the blue on top. As if that weren't enough, all the images' description pages have legends describing pink as the beta+/EC color and blue as the beta- color, which is opposite of the legend in the actual image itself (and for that matter, the colors used in the NuDat interactive chart).

Does anyone know where specifically these charts came from? The image description pages link to http://www.nndc.bnl.gov/nudat2/, but I can't find the charts as static images anywhere, only the interactive version. Were these charts created using NuDat data rather than being downloaded from the site somewhere? The users who uploaded the images here originally don't seem to be active anymore. — Xaonon (Talk) 17:50, 2 September 2015 (UTC)

The legend text is cut off, so half the wording is visible. — Preceding unsigned comment added by 81.151.3.28 (talk) 03:22, 8 October 2022 (UTC)

For many years, they have come from the Knolls Atomic Power Laboratory in paper form. I am not sure about electronic form. Gah4 (talk) 07:10, 8 October 2022 (UTC)

Unexplained dashed lines in full table

Hi, in the full table there are dashed lines separating some of the nuclides between 0 and 11 (e.g. 5H and 6He, 8C and 9C). I can't find an explanation for them anywhere on the page, does anyone know what they mean? These are different than the dotted boxes surrounding nuclear isomers (e.g. 10Li has both). Diabolical Dr Ely (talk) 00:05, 30 April 2019 (UTC)

@Diabolical Dr Ely: Sorry for the late reply. The dashed lines are supposed to denote nuclear drip lines, which demarcate the boundary between bound (particle-stable) and unbound (those that emit a proton or neutron with very short half-lives) nuclides. However, the table is not up to date, so they may be misleading in some cases. ComplexRational (talk) 13:27, 14 July 2019 (UTC)

@ComplexRational: Ah okay, looks like that was added to the description or I missed it the first time. Thank you! Diabolical Dr Ely (talk) 02:48, 20 July 2019 (UTC)

Rhenium-186

Based on the Wikipedia "Isotopes of Rhenium" page and my 1990-1991 CRC Handbook, I believe that the center and borders are wrong for Rhenium-186. This isotope is strange in that the isomer (186m) has a much longer half-life than the ground-state nuclide (186). Re-186m does decay to Re-186, though, which beta-decays to either Osmium- or Tungsten-186. I would change this myself, but I can't figure out how.DubleH (talk) 04:38, 16 October 2020 (UTC)

To edit the table in "Table of nuclides", go to "Template:Isotones". This information is also present in the edit section of the part "Full table". The information for Rhenium-186 and its nuclear isomer have been corrected. --Ammonium121 (talk) 20:37, 8 January 2021 (UTC)

fission products

Many (many!) years ago, I had a paper chart with light shading over squares that are fission product of U-235 and Pu-239. (Different colors for each.) It was light enough not to hide the data of the squares, and also with a soft border showing (qualitatively) the yield. I don't see in a web search any charts like that. Gah4 (talk) 04:46, 8 February 2022 (UTC)

Chart

Since all the actual WP:RS, the ones that make them, call them Chart of the Nuclides, seems that should be the actual name. Gah4 (talk) 18:29, 8 October 2022 (UTC)

Isobars and isodiaphers

The article now says Isobars neighbor each other diagonally from lower-left to upper-right – and then the opposite for isodiaphers. Shouldn't it be the other way around, or am I just tired? Fomalhaut76 (talk) 15:44, 9 December 2024 (UTC)

@Fomalhaut76: The article description is correct in the given context – the chart excerpt described by the first sentence in the section. Of course, this isn't the only widely seen representation, and I actually believe the most common one has Z increasing on the vertical axis and N increasing on the horizontal axis (in the first quadrant of a standard Cartesian plane), so perhaps all those statements may need adjustment. ^Complex/_Rational 15:50, 9 December 2024 (UTC)