The mass of P-32 remaining after 27 days, if the initial mass is 40g is 10.5 g.
What is half life of a radioactive element?
The half-life of a radioactive isotope is the amount of time it takes for one-half of the radioactive isotope to decay.
The half-life of a specific radioactive isotope is constant; it is unaffected by conditions and is independent of the initial amount of that isotope.
The number of half lives in 27 days;
n = 27 days/14 days
n = 1.929
The mass of P-32 remaining after 27 days, if the initial mass is 40g;
mass remaining = 40 g / (2^1.929)
mass remaining = 40 g / 3.808
mass remaining = 10.5 g
Thus, the mass of P-32 remaining after 27 days, if the initial mass is 40g is 10.5 g.
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