1. Nuclear decay occurs by a first order process. At the ACS meeting a couple years ago I went to a talk by my friend Stosh who works at Los Alamos Labs and studies radioactive actinide elements which can be used in medical applications. He reported on a study of the thorium-231 isotope (23¹Th) which found that after 540 seconds 32.5% of the original isotope remained. a. What is the rate constant for this decay? b. What is the half-life of 2³¹ Th? c. How long will it take for 90% of the isotope to decay?

1. Nuclear decay occurs by a first order process. At the ACS meeting a couple years ago I went to a talk by my friend Stosh who works at Los Alamos Labs and studies radioactive actinide elements which can be used in medical applications. He reported on a study of the thorium-231 isotope (23¹Th) which found that after 540 seconds 32.5% of the original isotope remained. a. What is the rate constant for this decay? b. What is the half-life of 2³¹ Th? c. How long will it take for 90% of the isotope to decay?

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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