an isotope undergoes radioactive decay by emitting radiation that has no mass. what other characteristic…

an isotope undergoes radioactive decay by emitting radiation that has no mass. what other characteristic does the radiation have?\n○ some shielding required\n○ positive or negative charge\n○ low penetrating power\n○ no charge
Answer
Brief Explanations:
- Gamma radiation has no mass.
- Gamma radiation is neutral (no charge).
- Alpha radiation has mass (helium nucleus, (^4_2\text{He})) and positive charge.
- Beta radiation has mass (electron or positron) and negative or positive charge respectively.
- Gamma radiation has high penetrating power and requires dense shielding (like lead), while alpha has low penetrating power and beta has moderate.
Answer:
no charge