January 2019 NY Regents Chemistry Exam
30 Which phrase describes a risk of using the radioisotope Co-60 in treating cancer? (1) production of acid rain (2) production of greenhouse gases
(3) increased biological exposure
(4) increased ozone depletion
Solution: Co-60 decays by gamma decay. Therefore the risk of using it is increased biological exposure which can cause skin burns, acute radiation sickness, or death.
Prepare for the Chemistry Regents Exam: HERE
Contact us for chemistry tutoring: HERE