An isotope undergoes radioactive decay by emitting radiation that has no mass. What other characteristic does the radiation have? some shielding required positive or negative charge low penetrating power no charge

negative charge

Explanation:

When a radiation has no mass, it is either beta rays or gamma rays. Both radiations have no mass. The difference between the two is that the beta rays have a charge of - 1 while gamma rays are electromagnetic waves without charge and mass.

Since gamma rays do not lead to the formation of a daughter nuclei during radioactive decay, the emitted radiation is likely to be beta radiation. Isotopes are unchanged after emitting gamma rays but they are changed after emitting beta rays. Hence the answer must be beta rays whose other property is that it possess a negative charge of - 1.

B

Explanation:

Edge 2020