12455 Cs has a half-life of 30.8 seconds.a) If we have 9.7 µg of Cs initially, how many Cs nuclei are present initially?b) How many Cs nuclei are present 2.9 minutes later?c) What is the “activity” (decay/time) at this time (2.9 minutes after initial conditions)?
12455 Cs has a half-life of 30.8 seconds.a) If we have 9.7 µg of Cs initially, how many Cs nuclei are present initially?b) How many Cs nuclei are present 2.9 minutes later?c) What is the “activity” (decay/time) at this time (2.9 minutes after initial conditions)?
Modern Physics
3rd Edition
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Chapter13: Nuclear Structure
Section: Chapter Questions
Problem 32P
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Question
124
55 Cs has a half-life of 30.8 seconds.
a) If we have 9.7 µg of Cs initially, how many Cs nuclei are present initially?
b) How many Cs nuclei are present 2.9 minutes later?
c) What is the “activity” (decay/time) at this time (2.9 minutes after initial conditions)?
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