Also known as Pu-240, 240Pu, Plutonium 240
Plutonium-240 (' or Pu-240') is an isotope of plutonium formed when plutonium-239 captures a neutron without undergoing fission. The detection of its spontaneous fission led to its discovery in 1944 at Los Alamos and had important consequences for the Manhattan Project.
via Wikipedia infobox
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).
via Wikidata sitelinks · CC0