132Ce

132Ce is an isotope of the element cerium (atomic number 58) with mass number 132. It is not a stable nuclide and is not found among naturally occurring cerium isotopes. If it exists, 132Ce would be a short-lived radioisotope, and no widely accepted experimental data have established its half-life or detailed decay scheme.

Nuclear properties for 132Ce can be inferred from its proton and neutron numbers. With Z = 58, it would have N = 132 − 58 = 74 neutrons, giving a neutron-to-proton ratio (N/Z) that places it well away from the known valley of stability for cerium. Consequently, 132Ce is expected to be radioactive, but exact ground-state properties such as spin and parity have not been established in experiments or in standard references.

Decay modes are anticipated to reflect a proton-rich character. Most likely channels would involve beta-plus decay or electron capture to decay toward 132La (lanthanum), though the precise dominant branch and decay energy would depend on the uncertain mass surface for this unobserved nuclide. Some nuclear models allow alternative decay paths, but without experimental measurements these remain theoretical possibilities.

Production of 132Ce would require high-energy nuclear reactions, such as projectile fragmentation or fusion-evaporation processes in accelerator facilities. Identification would rely on detecting characteristic decay signatures and gamma rays from the daughter nuclides.

See also: Isotopes of cerium, Nuclear data (ENSDF/NUBASE), Nuclear decay schemes, Projectile fragmentation.

References: Nuclear data repositories such as ENSDF and NUBASE, and mass evaluations (AME) summarize known cerium isotopes and provide framework for unobserved nuclides like 132Ce.