A sample originally contains 16 grams of a radioactive isotope. After 36 days, 14.8 grams of the isotope remain in the sample.

What is the half-life of the isotope?

Enter your answer in the box. Round your answer to the nearest day.

Guest Dec 17, 2019

#1**+1 **

14.8 = 16 e^{-k(36) }Solve for k = .002165598

8 = 16 e^{-.002165598 t }Solve for t = t_{1/2} = 320 days

ElectricPavlov Dec 17, 2019