Question

what is radioactivity? ​

Answer 1

Answer:

Heya mate,

The phenomenon of spontaneous emissions of active radiations by certain elements is called radioactivity.

Hope it helps you..

Answer 2

Answer:

Explanation:

radioactivity is the act of emitting radiation spontaneously. This is done by an atomic nucleus that, for some reason, is unstable; it "wants" to give up some energy in order to shift to a more stable configuration