Question

americium-241 has a half-life of 430 years. how much of a 10.0g sample of americium-241 remains after 1720 years?

Answer 1

Answer:

(a) What are the half-lives of these two isotopes? (b) Which one decays at a faster rate? (c) How much of a 1.00-mg sample of each isotope remains after 3 half- ...

Explanation: