Rhenium-185 Is a Stable Isotope $\alpha$ "
B) $\beta$ ^-"
C)"positron"
D) $\gamma$

Rhenium-185 is a stable isotope.Rhenium-188 is a radioisotope for treatment of cancer.What type of emission is likely for this isotope?

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