Question A6 Potassium has a radioactive isotope, K-40, with a half-life of 1.25 billion years, and a natural abun- dance of 0.012% (120 parts per million). Sea-water contains about 380 ppm of potassium (0.38 grams per litre), essential for life. Calculate the radioactivity of sea-water due to the potassium, giving your answer in Bq mf.
Nuclear Fission
Nuclear fission is a type of nuclear reaction in which heavier nuclei split into lighter nuclei by releasing a large quantity of energy. The elements like uranium-235 and plutonium-239 isotope undergo nuclear fission releasing energy. When nuclei undergo fission, some quantity of mass is lost. The lost mass is converted to nuclear energy. Nuclear fission reaction is used in nuclear power plants and atomic bombs. In nuclear power plants, nuclear reactors are used to generate electricity.
Endothermic Nuclear Reaction
A nuclear reaction can be described as a process where two atoms, or two nuclei or nucleus and subatomic particles such as a proton, neutron interact together, and a large amount of energy is produced and new elements are also produced.
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