One radioisotope of cobalt is Co-60. Cobalt has an atomic number of 27. Co-60 is used to irradiate medical equipment with gamma rays. Workers who monitor the irradiation process do not wear protect

One radioisotope of cobalt is Co-60. Cobalt has an atomic number of 27.Co-60 is used to irradiate medical equipment with gamma rays.Workers who monitor the irradiation process do not wear protective clothing. State and explain two reasons why.