The half-life of plutonium-239 is 24110 yrs. Of
an original mass of 88 g, how much remains
after 1.49482 × 10^5 yrs?
Answer in units of g.
mass of radioactive element can be expressed by the formula
, where m0
is the initial mass, T0
is the half-life and T is the time elapsed in years.
= 88 * (1/2)149482/24110
= 1.2 g
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