9.24 days does it take 500 grams of the isotope to decay to 250 grams.
Arithmetic operations can also be specified by subtracting, dividing, and multiplying built-in functions.
The operator that performs the arithmetic operation is called the arithmetic operator.
Operators which let do a basic mathematical calculation
Given that
The isotope thulium-167 is used in laser scans for medical treatments
The rate of decay is 0.075
The isotope thulium-167 is used in laser scans for medical treatments.
If we started with 500 grams then we are looking for when only 250 grams are left so
y = y₀e^(-0.075t)
y₀ represents the initial amount of radioactive material
250 = 500e^(-0.075t)
0.5 = e^(-0.075t)
Now take the natural log of both sides which gives us,
ln0.5 = -0.075t
t = ln0.5/(-0.075)
t = 9.24 days
Hence, 9.24 days does it take 500 grams of the isotope to decay to 250 grams.
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