Question

what is mean by radioactive Substance ?​

Answer 1

Answer:

Radioactive substances are atoms that decay naturally. They can give off alpha particles, beta particles and gamma radiation. Unlike X-ray sources they cannot be turned off, so their control is more difficult.

Answer 2

Answer:

Radioactive substances are atoms that decay naturally they can give off alpha particles,and radiation.unlike X-ray sources they cannot be turned off,so their control is more difficult.