A radioactive isotope has a half-life of 8 days. What fraction of the atoms will remain after 72 days?
A
9.766 × 10-4
B
1.736 ×10-3
C
1.953 ×10-3
D
3.472 × 10-3
E
3.906 x 10-3
Verified Correct Answer: C.
Physical Principles & Numerical Solution
No expanded working has been attached for this question yet. The verified answer is Option C.
Source: Myschool Past Questions Archive (Record #42989)