Average Exposure to Radiation from Common Sources Source Dose (mrem/year) Naturally Occurring Radiation Cosmic rays Terrestrial radiation (rocks, buildings) Inside human body (K-40 and Ra-266 in the bones) 27 28 39 Radon in the air 200 Total 294 Artificial Radiation Medical Xrays Nuclear medicine 39 14 Consumer products Nuclear power plants All others 10 0.5 1.5 Total 65.0 Grand total 359 Use the data on the table to calculate the percentage of total annual radiation from artificial sources that the average person receives from nuclear medicine.
Radioactive decay
The emission of energy to produce ionizing radiation is known as radioactive decay. Alpha, beta particles, and gamma rays are examples of ionizing radiation that could be released. Radioactive decay happens in radionuclides, which are imbalanced atoms. This periodic table's elements come in a variety of shapes and sizes. Several of these kinds are stable like nitrogen-14, hydrogen-2, and potassium-40, whereas others are not like uranium-238. In nature, one of the most stable phases of an element is usually the most prevalent. Every element, meanwhile, has an unstable state. Unstable variants are radioactive and release ionizing radiation. Certain elements, including uranium, have no stable forms and are constantly radioactive. Radionuclides are elements that release ionizing radiation.
Artificial Radioactivity
The radioactivity can be simply referred to as particle emission from nuclei due to the nuclear instability. There are different types of radiation such as alpha, beta and gamma radiation. Along with these there are different types of decay as well.
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