Question

1.Which inert gas is used as source of gamma rays ?​

Answer 1

Answer:

I.F.

Many more radionuclides that also emit gamma radiation in their decay are available and many have very long half-lives. Two of the most widely used radionuclides are 60Co (with a half-life of 5.27 yr) and 137Cs (with a half-life of 30.0 yr). Both these radionuclides decay by beta emissions.

Explanation:

this is your answer mark me as brainliest