Cobalt-59 Is a Stable Isotope $\gamma$ Emission"
C)"positron Emission"
D) $\beta$ ^- Emission"
E)

Cobalt-59 is a stable isotope.Cobalt-60 is used as a radioactive source approved by the FDA for irradiation of food.This process kills microbes and insects and can delay ripening.What decay pathway is likely for cobalt-60?

A) "X-ray emission"
B) " $\gamma$ emission"
C) "positron emission"
D) " $\beta$ ^- emission"
E) " $\alpha$ emission"