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Course: High school chemistry > Unit 9

Lesson 2: Half-life and radiometric dating
Science
High school chemistry
Nuclear chemistry
Half-life and radiometric dating
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Apply: half-life and radiometric dating

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Problem

A radioactive isotope was prepared in a laboratory. The following graph tracks its decay over a period of 24 days.
A radioactive decay graph showing the decay of 16,000 nuclei over 24 days.
What is the approximate half-life of this radioisotope?
Choose 1 answer: