Why this page
editNp-239 is a particularly significant nuclide, being both an intermediate in the creation of Pu-239 in a nuclear reactor and a significant factor in nuclear fallout. Hopefully we will have at least an article section as a better redir target for it in time, but it doesn't technically qualify as an R with possibilities IMO.
There may even have been such a section in the past, see here, but if that section or anchor existed it seems to have been deleted. Andrewa (talk) 07:33, 2 October 2022 (UTC)