Pollution Essay: Radioactivity Or Radioactive Decay
On our planet Earth, every person, animal and object are subjected to radiation and may indeed contain it. We can neither feel it nor see it, but we are amidst it at all times. On our planet, there are many substances which lead to radiations. But what exactly is radiation?
Radiation is the emission or transmission of energy in the form of waves or particles through space or through a medium. There exist a variety of radiations such as electromagnetic radiations like radio waves, visible light, x-rays, and gamma radiation (γ) and particle radiations like alpha radiation (α), beta radiation (β), and neutron radiation. One of the major reasons for the occurrence of these radiations is the radioactivity or radioactive decay.
Radioactivity or radioactive decay is the process by which the nucleus of an unstable atom loses energy by emitting radiations. Radioactive decay occurs in unstable atomic nuclei. They don’t have enough binding energy to hold the nucleus together due to an excess of either protons or neutrons.
Radioactivity is the property exhibited by the radioactive isotopes of stable elements and all isotopes
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He exposed potassium uranyl sulphate to sunlight and then placed it on photographic plates wrapped in black paper. He was able to prove that uranium emitted radiation without an external energy source like the sun. Moreover, the basis of radioactivity was laid down by Marie Curie and her husband Pierre Curie. Radioactivity was coined by Marie Curie. They extracted uranium from its ore and found that the remaining of the ore showed more reactivity than the pure form of the element. This observation intrigued them to a great extent due to which they were able to discover elements such as radium and polonium. Both of them were awarded with the Nobel Prize in Physics for their significant work on
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