If a tree dies and the trunk remains undisturbed for 12,000 years, what percentage of original C-14 is still present?(half-life of C-14 is 5730 years)O a. 23.4%O b. 2.36%O c. 38.9%d. 80.5%e. 29.2% In the reaction shown, the radiation produced is a(an)6666Cu2930Zn + ?a. alpha particleO b. beta particleO c. positronO d. gamma raye. neutron

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If a tree dies and the trunk remains undisturbed for 12,000 years, what percentage of original C-14 is still present? (half-life of C-14 is 5730 years)

Chemistry: An Atoms First Approach

2nd Edition

ISBN:9781305079243

Author:Steven S. Zumdahl, Susan A. Zumdahl

Publisher:Steven S. Zumdahl, Susan A. Zumdahl

Chapter18: The Nucleus: A Chemist's View

Section: Chapter Questions

Problem 17E

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Question

If a tree dies and the trunk remains undisturbed for 12,000 years, what percentage of original C-14 is still present?
(half-life of C-14 is 5730 years)
O a. 23.4%
O b. 2.36%
O c. 38.9%
d. 80.5%
e. 29.2%

In the reaction shown, the radiation produced is a(an)
66
66
Cu
29
30Zn + ?
a. alpha particle
O b. beta particle
O c. positron
O d. gamma ray
e. neutron

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