Demosthenical Periodic Table, Chemical Element Use and Properties, Origin, and Discovery

Periodic Table, Chemical Element Radioactive

Radiation is a release of energy generated by radioactive decay of unstable atomic nuclei of certain chemical elements.

Radioactivity was discovered by the French Becquerel in 1896, who observed that a photographic plate could be veiled by ultraviolet light in the absence of natural light when it came in contact with uranium.

Periodic Table, Alpha Radiation Particles, Chemical Element

Over the years the field studies determined the existence of 3 different types of radiation:

The primary cosmic radiation is radiation originating in outer space; It consists of proton and alpha particles of very high energy. When passing through the atmosphere interacts with elements in it, and as a result of this interaction gamma radiation, electrons, neutrons, mesons, and other energy particles originate, which together constitute what is known as secondary cosmic radiation.

Alpha radiation particles, which are integrated into the flow of two protons and two neutrons, the mass and the high volume of these particles occur that their movement is slower and its penetrating power is low, although they have a high power ionizing.

Beta radiation particles, particles is one formed by keeping a certain resemblance to the electrons and are extremely small allowing them to travel at a similar speed of light and have an average penetration power.

Gamma radiation particles are one that consists of electromagnetic radiation and high energy content, allowing the gamma rays have a high penetration power and can make long journeys at high speed.

The half-life of radium is little less than 1600 years. After several thousand years nothing left radio in the crust of not being because it is constantly formed by the decay of uranium. The same is true for other decay products of uranium whose half-lives are equal in some cases to only fractions of a second.

Among radioactive elements of the periodic table are: