Question

Define Radioactivity. What causes radioactivity?

Answer 1

Hint: We have to know that nuclear chemistry is one of the important parts of chemistry. Nuclear chemistry was first discovered by Henry Becqurel. Protons, neutrons, helium or alpha particles, electron or beta particles, deuterons and positrons are used as projectile and ejected particles in nuclear chemistry. Projectiles and ejectiles are an important part of nuclear chemistry. The projectile is nothing but the particle used to bombard the parent or target nucleus in the nuclear reaction. In nuclear reaction, the product side except the daughter nucleus and other particles are considered as ejected particles.

Complete answer:
We must remember that radioactivity is important for nuclear chemistry. Radioactivity is nothing but the phenomenon of spontaneous disintegration of atomic nuclei, resulting in the form of emission of radioactive rays called radioactivity. This kind of radioactivity was developed from the nucleus of the atom.
The radioactivity is due to the unstable nucleus of the atom. Radioactivity is also due to the electrons, protons and some micro particles. Radioactivity also comes in very spontaneously in the nuclear reaction in chemical sciences.

Note:
We need to know that the proton is nothing but only one proton in the particles. The symbol of the proton is $${}_{\text{1}}^{\text{1}}\text{H}$$. The neutron is nothing but only one neutron in the particles. The symbol of a neutron is $${}_{\text{0}}^{\text{1}}\text{n}$$. The helium or alpha particle is nothing but only one helium in the particles. The symbol of a helium or alpha particle is $${}_2^4\text{He}$$. The deuteron is nothing but one neutron and one proton in the particles. The symbol of deuteron is $${}_{\text{1}}^2\text{H}$$. The positron is nothing but only one positron in the particles. The symbol of positron is $${}_{\text{ + 1}}^{\text{0}}\text{e}$$.