Question

What does radioactive mean?

A.Absorbing high-energy electromagnetic radiation

B.Emitting radiation as a result of unstable nuclei

C.Having electron transitions at radio-wave frequencies

D.Generating positively or negatively charged ions

Answer 1

B. Emitting radiation as a result of unstable nuclei.

Step-by-step explanation:

Radioactive by definition is "Radioactivity is the spontaneous emission of radiation in the form of particles or high energy photons resulting from a nuclear reaction". So we would assume that the answer would be B.