Explanation Explanation Half-life t 1 / 2 is 31.4 yrs The decay constant is calculated by the formula, λ = 0.693 t 1 / 2 Where λ is the decay constant. t 1 / 2 is the half-life. Substitute the value of t 1 / 2 in the above equation. λ = 0.693 31.4 yrs - 1 = 0 . 0 2 2 0 y r s - 1 _ The decay constant is 0 . 0 2 2 0 y r s - 1 _ . Explanation The first order integrated rate law is, ln ( n 0 n ) = λ t Where, n 0 is the initial amount of nuclide

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ISBN: 9781133611097

Author: Steven S. Zumdahl

Publisher: Cengage Learning

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Question

Chapter 19, Problem 63AE

Interpretation Introduction

Interpretation: Half-life of a nuclide is given. Third life of the nuclide is to be defined and determined.

Concept introduction: A process through which a unstable nuclide looses its energy due to excess of protons or neutrons is known as radioactive decay. The cause of instability of a nuclide is its inefficiency in holding the nucleus together.

Half life of radioactive sample is defined as the time required for the number of nuclides to reach half of the original value.

To determine: The third life of the nuclide.

Expert Solution & Answer

Chapter 19 Solutions

Chemistry

Ch. 19 - Prob. 1RQ Ch. 19 - Prob. 2RQ Ch. 19 - Prob. 3RQ Ch. 19 - Prob. 4RQ Ch. 19 - Prob. 5RQ Ch. 19 - Prob. 6RQ Ch. 19 - Prob. 7RQ Ch. 19 - Prob. 8RQ Ch. 19 - Prob. 9RQ Ch. 19 - Prob. 10RQ

Ch. 19 - Prob. 1Q Ch. 19 - Prob. 2Q Ch. 19 - Prob. 3Q Ch. 19 - Prob. 4Q Ch. 19 - Prob. 5Q Ch. 19 - Prob. 6Q Ch. 19 - Prob. 7Q Ch. 19 - Prob. 8Q Ch. 19 - Prob. 9Q Ch. 19 - Prob. 10Q Ch. 19 - Prob. 11E Ch. 19 - Prob. 12E Ch. 19 - Prob. 13E Ch. 19 - Prob. 14E Ch. 19 - Prob. 15E Ch. 19 - Prob. 16E Ch. 19 - Prob. 17E Ch. 19 - Prob. 18E Ch. 19 - Prob. 19E Ch. 19 - Prob. 20E Ch. 19 - Prob. 21E Ch. 19 - Prob. 23E Ch. 19 - Prob. 24E Ch. 19 - Prob. 26E Ch. 19 - Prob. 27E Ch. 19 - Prob. 28E Ch. 19 - Prob. 29E Ch. 19 - Prob. 30E Ch. 19 - Prob. 31E Ch. 19 - Prob. 32E Ch. 19 - Prob. 33E Ch. 19 - Prob. 34E Ch. 19 - Prob. 35E Ch. 19 - Prob. 36E Ch. 19 - Prob. 37E Ch. 19 - Prob. 38E Ch. 19 - Prob. 39E Ch. 19 - Prob. 40E Ch. 19 - Prob. 41E Ch. 19 - Prob. 42E Ch. 19 - Prob. 43E Ch. 19 - Prob. 44E Ch. 19 - Prob. 46E Ch. 19 - Prob. 47E Ch. 19 - Prob. 48E Ch. 19 - Prob. 49E Ch. 19 - Prob. 50E Ch. 19 - Prob. 51E Ch. 19 - Prob. 52E Ch. 19 - Prob. 53E Ch. 19 - Prob. 54E Ch. 19 - Prob. 55E Ch. 19 - Prob. 56E Ch. 19 - Prob. 57E Ch. 19 - Prob. 58E Ch. 19 - Prob. 59AE Ch. 19 - Prob. 60AE Ch. 19 - Prob. 61AE Ch. 19 - Prob. 62AE Ch. 19 - Prob. 63AE Ch. 19 - Prob. 64AE Ch. 19 - Prob. 65AE Ch. 19 - Prob. 66AE Ch. 19 - Prob. 67AE Ch. 19 - Prob. 68AE Ch. 19 - Prob. 69AE Ch. 19 - Prob. 70AE Ch. 19 - Prob. 71AE Ch. 19 - Prob. 72AE Ch. 19 - Prob. 73CWP Ch. 19 - Prob. 74CWP Ch. 19 - Prob. 75CWP Ch. 19 - Prob. 76CWP Ch. 19 - Prob. 77CWP Ch. 19 - Prob. 78CWP Ch. 19 - Prob. 79CP Ch. 19 - Prob. 80CP Ch. 19 - Prob. 81CP Ch. 19 - Prob. 82CP Ch. 19 - Prob. 83CP Ch. 19 - Prob. 84CP Ch. 19 - Prob. 85CP Ch. 19 - Prob. 86CP Ch. 19 - Prob. 87IP Ch. 19 - Prob. 88IP

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Define the term half-life and illustrate it with an example.

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