Question

What fraction of an original element will remain after six half-lives?

Answer 1

1/64

Step-by-step explanation:

After 1 half-life, 1/2 of the element will remain. Therefore, after 6 half lives, (1/2)^6 of the element will remain. (1/2)^6 = 1^6 / 2^6 = 1/64. So, 1/64 of the element will remain after 6 half-lives.