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Biology: The Unity and Diversity o...

0th Edition
STARR
ISBN: 9780357093795

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Chapter
Section
FindFindarrow_forward

Biology: The Unity and Diversity o...

0th Edition
STARR
ISBN: 9780357093795

Textbook Problem

If the half-life of a radioisotope is 20,000 years, then a sample in which three-quarters of that radioisotope has decayed is ______ years old.

  1. a. 15,000
  2. b. 26,667
  3. c. 30,000
  4. d. 40,000

Summary Introduction

Introduction: Half-life is the time taken for one-half of atoms of radioactive isotope to decay which is a characteristic of a radioisotope. The radiometric dating is a technique by which the fossils or age of a rock can be determined using the half-life calculations.

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