A sample of polonium has a half-life of 2.7 minutes and an initial activity of 6.500×108 Bq. What is its activ?
A sample of polonium has a half-life of 2.7 minutes and an initial activity of 6.500×108 Bq. What is its activity after 24 minutes have elapsed?
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Assuming that is actually 6.5e8, not 108*6.5 as you listed.
N = N₀(0.5)^(t/τ)
τ is half life
t is time
N₀ is initial quantity
N is quantity afte time t
N = (6.5e8)(0.5)^(24/2.7)
N = 1.37e6
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