7. Californium-251 was synthesized at the University of California in 1950. At the time of sampling, a 0.632 g of Californium-251 had an activity of 3.72 Ci. a) Write the nuclear equation for the decay of Californium-251 and determine which particle is emitted when Californium-251 decays to Curium-227 b) What is the decay rate of Californium-251? c) What is the decay constant of Californium-251?

7. Californium-251 was synthesized at the University of California in 1950. At the time of sampling, a 0.632 g of Californium-251 had an activity of 3.72 Ci. a) Write the nuclear equation for the decay of Californium-251 and determine which particle is emitted when Californium-251 decays to Curium-227 b) What is the decay rate of Californium-251? c) What is the decay constant of Californium-251?

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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Question

7. Californium-251 was synthesized at the University of California in 1950. At the time of sampling, a 0.632 g
of Californium-251 had an activity of 3.72 Ci.
a) Write the nuclear equation for the decay of Californium-251 and determine which particle is emitted when
Californium-251 decays to Curium-227
b) What is the decay rate of Californium-251?
c) What is the decay constant of Californium-251?
d) What is the half-life of Californium-251?
e) What fraction of the Californium-251 nuclei would remain un-decayed after 500 years (FYI...500 years =
2.63x108 minutes)?

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