Radioactive Decay Kinetics -exponential Variation of n as a function of time t Number of radioactive nuclei decrease exponentially with time N=N e as indicated by the graph here Also a=a e 九t As a result. the radioactivity vary in the same manner Note N=A 入N6=AVariation of N as a function of time t N No t N = No e - t Also A = Ao e - t Radioactive Decay Kinetics -exponential Number of radioactive nuclei decrease exponentially with time as indicated by the graph here. As a result, the radioactivity vary in the same manner. Note  N = A  No = Ao