Ce136

Ce-136 is a nuclide of the element cerium (atomic number 58) with a mass number of 136. It is one of the stable isotopes of cerium, a group that also includes Ce-138, Ce-140, and Ce-142. As a stable isotope, Ce-136 does not undergo radioactive decay under normal conditions and is not used for radiometric dating.

In nature, cerium occurs with a small portion of Ce-136 alongside the other stable cerium isotopes. The exact abundance of Ce-136 is relatively low compared with the dominant Ce-140 isotope, making it a minor component of total cerium. The presence of multiple stable cerium isotopes allows scientists to study isotopic composition and fractionation in geological and cosmochemical samples.

Ce-136, like other stable cerium isotopes, is primarily of interest in geochemistry and cosmochemistry. Isotopic analyses of cerium enable investigations into rare-earth element patterns, oxidation-state behavior (such as Ce3+ versus Ce4+), and processes that affect element distribution in rocks and minerals. While Ce-136 itself is not a radioactive tracer, its abundance relative to other cerium isotopes can contribute to broader isotopic studies of the Earth's crust and meteorites.

Overall, Ce-136 is a stable, naturally occurring cerium isotope present in trace amounts and studied within the broader context of cerium isotopic geology.