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What is nuclear fission?
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Nuclear fission is the process of splitting a large atomic nucleus into smaller nuclei, releasing a significant amount of energy.
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Which elements are commonly used in nuclear fission reactions?
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Uranium-235 and Plutonium-239 are commonly used in nuclear fission reactions.
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What is a chain reaction in the context of nuclear fission?
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A chain reaction is a series of nuclear fissions, each initiated by the release of additional neutrons in every split event, leading to a self-sustaining series of reactions.
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Why is nuclear fission used in nuclear reactors?
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Nuclear fission is used in reactors to produce energy, as it releases a large amount of heat that can be converted into electricity.
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What is a critical mass in nuclear fission?
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Critical mass is the minimum amount of fissile material needed to maintain a nuclear chain reaction.
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How is nuclear fission controlled in a power plant?
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Nuclear fission is controlled using control rods, which absorb neutrons to slow down the chain reactions.
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What are the environmental impacts of nuclear fission?
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Nuclear fission produces radioactive waste, which must be managed carefully to avoid environmental contamination.
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Who discovered nuclear fission and when?
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Otto Hahn and Fritz Strassmann discovered nuclear fission in 1938.
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What is a nuclear reactor?
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A nuclear reactor is a device used to initiate and control sustained nuclear chain reactions.
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What is the role of a moderator in a nuclear fission reactor?
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A moderator slows down neutrons to increase the probability of fission.
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Why is water commonly used in nuclear reactors?
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Water is used as both a coolant and a neutron moderator in many nuclear reactors.
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What are the advantages of nuclear fission for energy production?
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Nuclear fission provides a large amount of energy from a small amount of fuel and produces low greenhouse gas emissions.
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What are some safety concerns associated with nuclear fission?
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Potential radiation leaks, nuclear meltdowns, and long-term storage of radioactive waste are key safety concerns.
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What event increased public concern about nuclear fission power?
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The Chernobyl disaster in 1986 significantly increased public concern about nuclear fission power safety.
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What kind of radiation is produced in nuclear fission reactions?
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Nuclear fission reactions generally produce gamma rays and neutrons as radiation.
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