The half-life of the radioactive nucleus 22688Ra is 1.6 x 103 year. If a sample initially contains 3.00 x 1016 nuclei, what is the number of nuclei of the material remaining4.8 x 103 year?
A 3.75x1018
B 3.10x1018
C 3.75x1015
D 3.60x1020
Solution
Correct Answer: Option C