Radioactive plutonium 239Pu decays to 235U with a half-life of 2.44 x 104 years. How long (in years) must a sample of 239Pu be stored until the amount has decreased by a factor of 106?
A. 5.23 x 106
B. 2.44 x 105
C. 4.86 x 105
D. 3.27 x 105
E. 3.07 x 106
Radioactive plutonium 239Pu decays to 235U with a half-life of 2.44 x 104 years. How long...
the half life for radioactive decay (a first order process) of plutonium- 239 is 240,000 years. How many years does it take for one mole of this radioactive material decay until just one atom remains?
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