4. . Nuclear Fission and Fusion What happens to the nucleus of an atom during this type of reaction? (Circle One) It splits apart It combines with another nucleus Copy facts about nuclear fission from list below. . Fission Draw a model of this nuclear change below. Can create a chain reaction The nucleus is split into pieces Uses uranium-235 as a reactant Products of this reaction are not radioactive OTwo nuclei are combined Uses hydrogen and helium atoms as reactants Caused by neutrons hitting a nucleus Cannot yet be used to create electricity Can use graphite or water to slow down the chain reaction Fusion What happens to the nucleus of an atom during this type of reaction? (Circle One) It splits apart It combines with another nucleus Copy facts about nuclear fusion from list below. Draw a model of this nuclear change below. Reaction that occurs in the sun Heat from this reaction is used to generate steam to power a turbine Involved in the accidents at Three Mile Island, Chernobyl, and Fukishima Reaction type that creates elements in stars Products are radioactive for thousands of years Used to produce energy in nuclear reactors Reaction type that creates elements in a particle accelerator 3 RE L
Nuclear Fusion
Nuclear fusion is a type of nuclear reaction. In nuclear fusion, two or more than two lighter atomic nuclei combine to form a heavier nucleus. During this process, an enormous amount of energy is released. This energy is called nuclear energy. Nuclear fusion is the energy source of the sun and stars.
Fusion Bomb
A fusion bomb is also known as a thermonuclear bomb or hydrogen bomb which releases a large amount of explosive energy during a nuclear chain reaction when the lighter nuclei in it, combine to form heavier nuclei, and a large amount of radiation is released. It is an uncontrolled, self-sustaining nuclear chain reaction where isotopes of hydrogen combine under very high temperature to form helium. They work on the principle of operation of atomic fusion. The isotopes of Hydrogen are deuterium and tritium, where they combine their masses and have greater mass than the product nuclei, get heated at high temperatures, and releases energy.
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