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18.Examine the table.  Isotope Half-Life (yrs) Carbon-14 5.715x10^3 Plutonium-239 2.41x10^4 Radium-226 1.60x10^3 Thorium-230 7.54x10^4 What is the average half-life for the radioactive isotopes listed in the table?   A.4.31 years   B.2.47 years   C.4.31 x 10^4 years   D.2.67 x 10^4 years

18.Examine the table.  Isotope Half-Life (yrs) Carbon-14 5.715x10^3 Plutonium-239 2.41x10^4 Radium-226 1.60x10^3 Thorium-230 7.54x10^4 What is the average half-life for the radioactive isotopes listed in the table?   A.4.31 years   B.2.47 years   C.4.31 x 10^4 years   D.2.67 x 10^4 years

College Physics
College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
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Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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18.Examine the table. 

Isotope Half-Life (yrs)
Carbon-14 5.715x10^3
Plutonium-239 2.41x10^4
Radium-226 1.60x10^3
Thorium-230 7.54x10^4

What is the average half-life for the radioactive isotopes listed in the table?  

  • A.4.31 years
     
  • B.2.47 years
     
  • C.4.31 x 10^4 years
     
  • D.2.67 x 10^4 years
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