After 4.00 years, a 2.0 g sample of a radioisotope remains from a sample that had an original mass of 4.00g.
1. Calculate the half-life of this mystery radioisotope.
2. How much of the radioisotope remains after 20.0 years? Show calcs to receive more than 1/4 credit.
a. Show the equation needed
b. Show a picture of you solving for the unknown.
c. Show the final answer.