1)Overview Radioactive Decays transmutations of nuclides Radioactivity means the emission of alpha(a) particles, beta(B)particles, or gamma photons n) etc from atomic nuclei. The term radioactivity was actually coined by Marie Curie Radioactive decay is a process by which the nuclei of a nuclide emitα,βorγ rays etc In the radioactive process, the nuclide undergoes a transmutation, converting to another nuclide5 Radioactive Decays transmutations of nuclides Radioactivity means the emission of alpha () particles, beta () particles, or gamma photons () etc. from atomic nuclei. The term radioactivity was actually coined by Marie Curie Radioactive decay is a process by which the nuclei of a nuclide emit ,  or  rays etc. In the radioactive process, the nuclide undergoes a transmutation, converting to another nuclide. 1) Overview