Radioactive Decay: Radioactive decay is the overall process by which unstable atomic nuclei lose energy to become stable emitting particles like alpha, beta, or gamma rays. It describes the transformation of a parent nucleus into a daughter nucleus and is characterized by a predictable half-life.
Radioactive Disintegration: On the other hand, radioactive disintegration refers to the specific event where a single nucleus undergoes, decay, transforming into another nucleus while releasing radiation.