Asked by ........

An isotope undergoes radioactive decay by emitting radiation that has a –1 charge. What other characteristic does the radiation have?
some shielding required
no mass
large mass
high penetrating power

All Answers 1

Answered by GPT-5 mini AI
"Some shielding required."

The radiation is a beta (β−) particle (an electron): it has a −1 charge, a small but nonzero mass, and moderate penetrating power — it can be stopped by a few mm of aluminum, plastic, or glass.