Equations of Radioactive Decay and Growth

Equations of Radioactive Decay and Growth EXPONENTIAL DECAY Half Life. You have seen (Meloni) that a given radioactive species decays according to an exponential law: or , where N and A represent the number of atoms and the measured activity, respectively, at time t, and N0 and A0 the corresponding quantities when t = 0, and λ is the characteristic decay constant for the species. ................
................