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29) a rock from the moon was found to contain 1.0 x 10* g (A,) of uranium-238 and 4.0 x 10“ g lead-206 (A). All of the lead-206 came from the decay of uranium-238. The half-life (tn) is 4.5 x10' years. How old is this rock? a) 1.0 x 10° years с) 6.0х 10° years b) 2.0 x 107 years d) 5.0 x 101° years

29) a rock from the moon was found to contain 1.0 x 10* g (A,) of uranium-238 and 4.0 x 10“ g lead-206 (A). All of the lead-206 came from the decay of uranium-238. The half-life (tn) is 4.5 x10' years. How old is this rock? a) 1.0 x 10° years с) 6.0х 10° years b) 2.0 x 107 years d) 5.0 x 101° years

General Chemistry - Standalone book (MindTap Course List)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter20: Nuclear Chemistry
Section: Chapter Questions
Problem 20.120QP
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29) a rock from the moon was found to contain 1.0 x 10*g (A,) of uranium-238 and 4.0 x 10“ g lead-206 (A). All of the lead-206 came from the decay of uranium-238. The half-life (t,n) is 4.5 x10° years. How old is this rock? a) 1.0 x 10* years c) 6.0 x 10° years b) 2.0 x 107 years d) 5.0 x 1010 years
Transcribed Image Text:29) a rock from the moon was found to contain 1.0 x 10*g (A,) of uranium-238 and 4.0 x 10“ g lead-206 (A). All of the lead-206 came from the decay of uranium-238. The half-life (t,n) is 4.5 x10° years. How old is this rock? a) 1.0 x 10* years c) 6.0 x 10° years b) 2.0 x 107 years d) 5.0 x 1010 years
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