Consider a radioactive nuclear decay series ABC.... with decay constants AA, AB, AC..., and assume at time t = 0 only nuclei of type A are present. Now integrate your expression to find the number of nuclei of type B at time t, i.e. NB(t). [ Hint: multiply by et and use integration by parts. Don't forget the integration constant!] . In the case of the actinide series (e.g. half-life of 238 U is 4.47 x 10⁹ years, very much greater than the daughter nuclei!) show that the decay chain is in secular equilibrium, i.e. all the daughter nuclei have essentially equal activities.

Consider a radioactive nuclear decay series ABC.... with decay constants AA, AB, AC..., and assume at time t = 0 only nuclei of type A are present. Now integrate your expression to find the number of nuclei of type B at time t, i.e. NB(t). [ Hint: multiply by et and use integration by parts. Don't forget the integration constant!] . In the case of the actinide series (e.g. half-life of 238 U is 4.47 x 10⁹ years, very much greater than the daughter nuclei!) show that the decay chain is in secular equilibrium, i.e. all the daughter nuclei have essentially equal activities.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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NUCLEAR CHEMISTRY: The mass defect of a nuclei A with a mass number of 243 is 1.586 amu. Estimate the total binding energy per nucleon in J/nucleon. Express your answers in three decimal places in scientific notation i.e., 6.022e23 to represent 6.022× 1023