The years that will take or 52.5 g of a 60.0 g sample to decay to its daughter isotope is 807 years.
What is half-life?
Half-life is the time required to decay or undergo half the process of any element.
Given the sample is 60.0 g in which 52.5 g sample has to be decay
so, 60 - 52.5 = 7.5 g
It can be seen that it goes three half life
60 >30 >15 >7.5
Now, the half life is 269
269 × 3 = 807 years.
Thus, the years taken are 807 years.
Learn more about isotopes
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