5. The isotope 1321 decays by B- emission into stable 132Xe with a half-life of 2.3 h. (a) How long will it take for of the original 132I atoms to decay? (b) How long it will take for a sample of 132I to lose 95% of its activity?

5. The isotope 1321 decays by B- emission into stable 132Xe with a half-life of 2.3 h. (a) How long will it take for of the original 132I atoms to decay? (b) How long it will take for a sample of 132I to lose 95% of its activity?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Question

5. The isotope 1321 decays by B emission into stable 132Xe with a
half-life of 2.3 h.
(a) How long will it take for of the original 132I atoms to
decay?
(b) How long it will take for a sample of 1321 to lose 95% of its
activity?

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