Number of half-lives Fraction Percentage remaining remaining elapsed 0. 100 1 1/2 50 1/4 25 3 1/8 12.5 1/16 6.25 1/32 3.125 1/64 1.563 1/128 0.781 ... ... 1/2" 100/(2") 1. Refer to the Table above and determine the number of half-lives that have elapsed. Fraction of Parent Isotope Remaining Number of Half-Lives Elapsed 1/2 (a) 1/8 (b) 4567

Principles of Instrumental Analysis
7th Edition
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Chapter27: Gas Chromatography
Section: Chapter Questions
Problem 27.5QAP
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Half-life and Radiometric dating
Number of
Fraction Percentage
remaining remaining
half-lives
elapsed
100
1
1/2
50
1/4
25
3
1/8
12.5
1/16
6.25
1/32
3.125
1/64
1.563
7
1/128
0.781
...
1/2"
100/(2")
1. Refer to the Table above and determine the number of half-lives that have elapsed.
Fraction of Parent Isotope Remaining Number of Half-Lives Elapsed
1/2
(a)
1/8
(b)
456
Transcribed Image Text:Number of Fraction Percentage remaining remaining half-lives elapsed 100 1 1/2 50 1/4 25 3 1/8 12.5 1/16 6.25 1/32 3.125 1/64 1.563 7 1/128 0.781 ... 1/2" 100/(2") 1. Refer to the Table above and determine the number of half-lives that have elapsed. Fraction of Parent Isotope Remaining Number of Half-Lives Elapsed 1/2 (a) 1/8 (b) 456
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Half life: The time period in which the concentration of reactant becomes half of the initial concentration.

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