Answer to Question #65154 in Astronomy | Astrophysics for ella rose

Question

What are the 3 types of Radioactivity?

Answer 1

There are three types of radiation: alpha, beta and gamma.
1) Alpha radiation is the fast moving helium atoms. It can be stopped, for example, by just a few inches of air or a piece of paper.
2) Beta radiation is the fast moving electrons. It can be stopped, for example, by several millimeters of plastic or by a sheet of aluminium.
3) Gamma radiation is a very high frequency electromagnetic radiation (photons). It can be stopped, for example, by a concrete or several inches of lead.