"Carbon 14 decays to carbon12. The half-life of the C14 isotope is 5730 years. 22920 years after an animal dies, ______ carbon 14 will have been replaced with carbon12 and only _____ will remain in a bone sample from the animals skeleton found by the archaeologists. "

Principles Of Pharmacology Med Assist
6th Edition
ISBN:9781337512442
Author:RICE
Publisher:RICE
Chapter20: Substance Abuse
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"Carbon 14 decays to carbon12. The half-life of the C14 isotope is 5730 years. 22920 years after an animal dies, ______ carbon 14 will have been replaced with carbon12 and only _____ will remain in a bone sample from the animals skeleton found by the archaeologists. "

"More than 99 percent, less than 1 percent"
 
"Three fourths (75 percent), one fourth (25 percent)"
 
"15/16ths (94 percent), 1/16 (6 percent)"
 
"62/64ths (97 percent), 2/64 (3 percent)"
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