joined together. * Addition – mers joined without the loss of atoms (presence of unsaturated carbons). * Condensation – mers joined through the loss of atoms from the functional groups of each monomer. Radioactive isotopes: * Everything with an atomic number over 82 is radioactive. * Unstable nuclei; too many neutrons:protons‚ large nuclei * Cobalt 60 formed by neutron bombardment. Detection: * Photographic film – exposes film * Geiger counter – alpha particles ionize
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Potassium makes up 1.5% - 2.1% of the Earth’s crust weight. In the crystal structure of potassium‚ the closest K-K separation is 461 nm and the metallic radius spans 231 nm. Potassium has three major isotopes. One out of the three is radioactive and is called K-40. K-39 and K-41 are the other two isotopes of potassium‚ which are stable. Prior to the 18th century‚ people used potassium without realizing it. The main two uses were for soap and potash‚ which is a potassium compound formed by burning
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Nutrients…………………………………………………………………………...5 III. Different kind of pollutants………………………………………………………………6 a. Organic pollutants…………………………………………………………………6 b. Inorganic pollutants……………………………………………………………..6 c. Metals……………………………………………………………………………6 d. Radioactive Isotopes………………………………………………………………7 1. Alpha………………………………………………………………….7 2. Beta……………………………………………………………………7 3. Gamma………………………………………………………………7 4. Neutrons…………………………………………………..…………...7 IV. How are pollutants transported through water?...
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attention and research due to the environmental concerns surrounding current conventional energy sources. Issues of regulation and safety are at the forefront of all discussions involving nuclear power. (Lillington) One of the major concerns is the radioactive waste that is produced during the fission of uranium. Uranium is an element that was integrated into the planet during the Earth’s formation from the dust of shattered stars. It was discovered by Martin Heinrich Klaproth in 1789 and although
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TERM PAPER DONE BY: SUMEET SONI LECTURER: JAMES MUNYITHYA I.D NO: 637294 COURSE: NSC2215 TABLE OF CONTENTS TOPIC PAGE INTRODUCTION…………………………………………………………………………2 NUCLEAR REACTIONS……………………………………………………………….3 HOW IT WORKS…………………………………………………………………………5 BENEFITS OF NUCLEAR POWER STATIONS…………………………………9 DRAWBACKS OF NUCLEAR POWER STATIONS…………………………….10 CASE STUDY……………………………………………………………………………11 CONCLUSION…………………………………………………………………………
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critical mass from a sub-critical mass of one of the two fissile isotopes. The critical mass is induced from either the compression method‚ or from the gun-barrel method. The gun-barrel method consists of a plug of a fissile isotope and a bullet of the same fissile with explosives behind the bullet. When the explosives detonate‚ the bullet is smashed into the plug‚ inducing a critical mass. The compression uses a hollow sphere of a fissile isotope‚ usually Plutonium-238‚ that is compressed by conventional
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of medicine‚ Cobalt-60 is used in cancer radiotherapy. b) Describe how the radioisotope is made. Radioactive cobalt-60 is produced in a process called activation‚ when materials in reactors‚ such as steel‚ are exposed to neutron radiation. Often isolated neutrons collide into atoms‚ and because they have no charge there is no repulsive force against them. These neutrons turn the atoms into isotopes; in this case typical iron-56 becomes iron-57‚ 58 and then 59. The heavy iron-59 atom is very unstable
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HELİUM 3 As we know‚ helium is a lightweight and non-radioactive isotope of helium with two protons and one neutron. Also it sometimes called ‘tralphium’. According to many experts‚ helium-3 can be a clean nuclear power. There are many benefits of helium-3 but the most important problem is that there is very little helium-3 available on the Earth. First of all‚ I will give general some information about helium-3 isotope. Helium-3 | General | Name‚ symbol | Helium-3‚ 3He‚ He-3
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Why Is Cameron? why not How do you produce nuclear energy? In a nuclear-fueled power plant – much like a fossil-fueled power plant – water is turned into steam‚ which in turn drives turbine generators to produce electricity. The difference is the source of heat. At nuclear power plants‚ the heat to make the steam is created when uranium atoms split – called fission. What is the process that occurs during a nuclear chain reaction? Nuclear Chain Reactions. A chain reaction refers to a process in
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Nuclear Reactors An Overview Nuclear reactor is any class of devices that can initiate and control a self-sustaining series of nuclear fissions. Nuclear reactors are used as research tools‚ as systems for producing radioactive isotopes‚ and most prominently as energy sources for nuclear power plants.Djeresssi (1991) Principles of operation Nuclear reactors operate on the principle of nuclear fission‚ the process in which a heavy atomic nucleus splits into two smaller fragments. The nuclear fragments
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