An initial amount of 300 g of the radioactive isotope thorium-234 decays according to , where t is in years. How long does it take for half of the initial amount to disintegrate? This time is called the half-life of this isotope. Round your answer to one decimal place.
A)240.5 years
B)170.7 years
C)24.5 years
D)27.5 years
E)245.1 years

Question

An initial amount of 300 g of the radioactive isotope thorium-234 decays according to  , where t is in years. How long does it take for half of the initial amount to disintegrate? This time is called the half-life of this isotope. Round your answer to one decimal place. ​
A)240.5 years 
B)170.7 years 
C)24.5 years 
D)27.5 years 
E)245.1 years

Quizplus · Accepted Answer

The Answer of An initial amount of 300 g of the radioactive isotope thorium-234 decays according to  , where t is in years. How long does it take for half of the initial amount to disintegrate? This time is called the half-life of this isotope. Round your answer to one decimal place. ​
A)240.5 years 
B)170.7 years 
C)24.5 years 
D)27.5 years 
E)245.1 years

An Initial Amount of 300 G of the Radioactive Isotope