Question

Radioactive Decay of Carbon 14

Answer 1

:Answer

1.0/5

7

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For this problem, we use the formula for radioactive decay which is expressed as follows:

An = Aoe^-kt

where An is the amount left after time t, Ao is the initial amount and k is a constant.  

We calculate as follows:

at hal-life equal to 5700,

An = Aoe^-kt

0.5 = e^-k(5700)

k = 1.22x10^-4

An = A