Question

²²⁷Ac has a half- life of 22.0yr with respect to radioactive decay. The decay follows two parallel paths, one leading to ²²⁷Th and the other to ²²⁷Fr. The percentage yields of these two daughter nuclides are 2.0 and 98.0 respectively. What are the decay constants (λ) for each of the separate paths?

Answer 1

For the radioactive decay of A into B and C by two parallel paths