Question

Cobalt-60 and iodine-131 are radioactive isotopes that are used in
(1) dating geologic formations
(2) industrial measurements
(3) medical procedures
(4) nuclear power

Answer 1

Colbalt-60 and iodine-131 are radioactive isotopes that are used in :(3). Medical procedures

Answer 2

Answer: Cobalt —60 and Iodine—131 are radioactive isotopes used in medical procedures

Explanation: