Question

What are the types of radioactivity?

Answer 1

An unstable nucleus tends to decompose spontaneously, Radioactive decay is a property exhibited by several naturally occurring elements as well as by artificially produced isotopes of the elements.

Complete step-by-step solution:
Radioactivity is the property being exhibited by certain types of matter in which they emit energy and subatomic particles spontaneously and simultaneously. A sample material containing radioactive nuclei is considered as radioactive. The process by which an unstable atomic nucleus loses energy by radiation is called radioactive decay.
the types of radioactivity
alpha particles $(\alpha )$
beta particles $(\beta )$
gamma rays $(\gamma )$
These particles were named using the first three letters of the Greek alphabet.
alpha particles $(\alpha )$
The nuclear disintegration process that emits alpha particles is called alpha decay. These are emitted during radioactive decay and have two protons and two neutrons. Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay, but may also be produced in other ways.
beta particles $(\beta )$
A beta particle is simply a high energy electron that is emitted from the nucleus. At the same time that the electron is being ejected from the nucleus, a neutron is becoming a proton. These are electrons/protons with high energy.
gamma rays $(\gamma )$
gamma rays, simply a loss of energy by the nucleus. Alpha and beta decays are often difficult to occur. They can be very slow processes. The lifetimes of some radioactive nuclei are long for the clocks of the infinitely small. It consists of the shortest wavelength electromagnetic waves and so imparts the highest photon energy.

Note: Radioactivity is the giving off of rays of particles or energy, such as electromagnetic waves, by the process of breaking apart atoms, or nuclei, of certain elements. The rays or particles that are given off when atoms break apart are called radioactivity.