Campbell Essential Biology with Physiology (5th Edition)
5th Edition
ISBN: 9780321967671
Author: Eric J. Simon, Jean L. Dickey, Jane B. Reece, Kelly A. Hogan
Publisher: PEARSON
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Chapter 14, Problem 8SQ
Summary Introduction
To determine: The age of a rock found by a paleontologist that contain 12 mg of the radioactive isotope potassium 40. The rock contains 3 mg of potassium 40 and half life of potassium 40 mg is 1.3 billion years.
Introduction: The half life time of a radioactive element can determine the age of a rock. Half life time is the interval time period which is required for the decay of an element to its half value from its initial value. It is denoted as T1/2.
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