Question

radioactivity is produced when unstable nuclei ____. a)bond together b)break apart c)become cooler d)expand

Answer 1

Radioactivity is produced when unstable nuclei B. Break apart.

Answer 2

b) break apart

Step-by-step explanation:

The radioactivity is the process in which an unstable atomic nucleus lose energy by emitting radiation like alpha particles, beta particles, gamma rays and positrons which make part of the nuclei.

An alpha particle is a nucleus of helium

A Beta particle is an electron

The gamma rays are photons

And a positron is like and electron but with positive charge.

All these types of radiation make part of the radioactive decay.