Question

Fluorine-18 is a radioactive isotope of fluorine that is used in medical imaging scans. It has a

half-life of approximately 110 minutes. If a patient has a medical imaging scan using an

injection of fluorine-18 at 9 am, at what time will there be less than 25% of the radioactive

isotope in her body?

a) 10 am

b) 12 pm

c) 1 pm

d) 11 am​

Answer 1

Step-by-step explanation:

Fluorine-18 is a radioactive isotope of fluorine that is used in medical imaging scans. It has a

half-life of approximately 110 minutes. If a patient has a medical imaging scan using an

injection of fluorine-18 at 9 am, at what time will there be less than 25% of the radioactive

isotope in her body?

$ans \: is \: 11am$