5. In 80% of all events, 6831 Ga (T1/2 = 68 min) decays to the ground state of 6830Zn (stable), with emission of a high energy charged particle (Emax = 1.89 MeV). In 20% of all events, 6831 Ga decays to an excited state of 68 30Zn that lies 1.08 MeV above the ground state, without emission of that charged particle. a. b. C. d. Sketch a decay scheme that is consistent with this information. List all the radiations emitted during the decay of 68 Ga. What decay mode accounts for release of 80% of the decay energy of 68 Ga? What mode accounts for release of 20% of the decay energy? If a sample contained 10 mCi of 68 Ga at 8:00 am this morning, how much activity would be left at 1:00 pm this afternoon?
5. In 80% of all events, 6831 Ga (T1/2 = 68 min) decays to the ground state of 6830Zn (stable), with emission of a high energy charged particle (Emax = 1.89 MeV). In 20% of all events, 6831 Ga decays to an excited state of 68 30Zn that lies 1.08 MeV above the ground state, without emission of that charged particle. a. b. C. d. Sketch a decay scheme that is consistent with this information. List all the radiations emitted during the decay of 68 Ga. What decay mode accounts for release of 80% of the decay energy of 68 Ga? What mode accounts for release of 20% of the decay energy? If a sample contained 10 mCi of 68 Ga at 8:00 am this morning, how much activity would be left at 1:00 pm this afternoon?
Chemistry: Principles and Reactions
8th Edition
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:William L. Masterton, Cecile N. Hurley
Chapter18: Nuclear Reactions
Section: Chapter Questions
Problem 68QAP
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Question
Transcribed Image Text:5.
In 80% of all events, 6831 Ga (T1/2 = 68 min) decays to the ground state of 6830Zn (stable), with
emission of a high energy charged particle (Emax = 1.89 MeV). In 20% of all events, 6831 Ga decays
to an excited state of 68 30Zn that lies 1.08 MeV above the ground state, without emission of that
charged particle.
a.
b.
C.
d.
Sketch a decay scheme that is consistent with this information.
List all the radiations emitted during the decay of 68 Ga.
What decay mode accounts for release of 80% of the decay energy of 68 Ga? What mode
accounts for release of 20% of the decay energy?
If a sample contained 10 mCi of 68 Ga at 8:00 am this morning, how much activity would
be left at 1:00 pm this afternoon?
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