Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN: 9780134746241
Author: Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher: PEARSON
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Question
A radioactive element inside has been decaying for 4 million years? Given that the half-life is 500.000 years, what percent of the parent is currently left O 50% O 90% O 6% O none of these O 25%
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Transcribed Image Text:A radioactive element inside has been decaying for 4 million years? Given that the half-life is 500.000 years, what percent of the parent is currently left O 50% O 90% O 6% O none of these O 25%
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