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