12
QuizMultiple Choice
Half-Life
Question 12 • Foothill-B Period-Chemistry-26/27B
The original amount of a radioactive sample should be multiplied by which expression to calculate the amount of the sample that remains after n half-lives have passed?
Answer
A
(one half) times n.
B
(StartFraction 1 over n EndFraction) squared.
C
(one half) superscript n.
D
StartFraction 1 over (2 n) EndFraction.