RADIOACTIVITY AND RADIOISOTOPES.

The article presents information on a research paper regarding the basic facts and principles of radioactivity and properties of radioisotopes related to this. This paper is a back-ground work for the more specialized treatments and applications appearing in this regard. The present state of atomic science is the culmination of researches resulted in three monumental discoveries such as X-rays, radioactivity and the electron that provided novel and powerful methods for studying the nature and the structure of the atom. Later investigations revealed that radioactivity is a property of the atom and thus it is a nuclear phenomenon. The nature of these radiations was resolved into three types of rays, the alpha, the beta and the gamma rays. Further studies revealed that the elements that have radio activity die away according to an exponential law. Scientists adopted some convenient definition of the life of a radio active element that is usually called the half-life period. Based on this they defined the properties of radioisotopes as well.