'Uranium 235' diaporamas de présentation

Topic 8: Energy, power, climate change 8.4 Non-fossil fuel power production

Topic 8: Energy, power, climate change 8.4 Non-fossil fuel power production. Nuclear power 8.4.1 Describe how neutrons produced in a fission reaction may be used to initiate further fission reactions (chain reactions).

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Nuclear Reactions

Nuclear Reactions. Fission and Fusion. CS 4.4. State that in fission a nucleus of large mass splits into 2 nuclei of smaller mass numbers, usually with the release of neutrons. CS 4.5. State that fission may be spontaneous or induced by neutron bombardment. CS 4.6.

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Nuclear Weapons

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The Fission Bomb

The Fission Bomb. Luke Whittlesey Department of Physics and Astronomy Stephen F. Austin State University. add. edit. ydp. Introduction. In the 1930’s German physicist/chemists Otto Hahn and Fritz Strassman discovered the fission of Uranium 235

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Radioactivity and Nuclear energy

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Nuclear Reactions

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Nuclear fission and nuclear fusion reactions release huge amounts of energy.

Nuclear fission and nuclear fusion reactions release huge amounts of energy. 40.6 Mass-Energy Equivalence. When this decrease in mass is multiplied by the speed of light squared, it is equal to the energy yielded by each uranium nucleus that undergoes fission.

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Lesson Five Fission and Chain Reactions

The Harnessed Atom. Lesson Five Fission and Chain Reactions. What you need to know about Fission and Chain Reactions:. Fission Chain reaction Uranium fuel Mining Milling Enrichment Fuel fabrication. Nuclear energy starts with a split.

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Reading Qs

Reading Qs. List the different reasons why these nuclear accidents occurred. Select the one that interests you the most and explain why. Starter Q (1/13). What is the difference between an atom, element, molecule, atomic number, isotope and ion?. Nuclear Weapons. Atom Bomb (fission).

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WW 2 History Club

WW 2 History Club. Manhatten Project Timeline. 24 - Aug - 2011. Manhattan Project Timeline. Einstein postulates the matter energy relationship E=mc 2 1919 Ernest Rutherford discovers the proton by artificially transmuting an element (nitrogen into oxygen).

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Critical Mass

Critical Mass. Critical Mass. The critical mass of fissile material is the minimum amount needed for a sustained nuclear chain reaction. (a fissile material is one that is capable of sustaining a chain reaction of nuclear fission). Critical.

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NUCLEAR FISSION AND FUSION

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7.3 Nuclear Reactions

7.3 Nuclear Reactions. Text P. 312 Nuclear reactions differ from chemical reactions. Nuclear reactions can occur: 1.) Naturally Ex. -The alpha, beta, or gamma decay of isotopes.

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7.3 Nuclear Reactions:

7.3 Nuclear Reactions:. Nuclear reactions are different than chemical reactions. Induced Nuclear Reactions. Scientists can also force ( = induce) nuclear reactions by smashing nuclei with alpha, beta and gamma radiation to make the nuclei unstable. or. Symbols to Remember:. Nuclear Reactions.

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Nuclear Fission & Fusion

Nuclear Fission & Fusion. History:. Hahn & Strassman (1939). Bombarded Uranium-235 samples with neutrons expecting the Uranium-235 to capture neutrons. Instead, the products showed different chemical properties that they could not explain. Meitner & Frisch.

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Nuclear Fission & Fusion

Nuclear Fission & Fusion. History:. Hahn & Strassman (1939). Bombarded Uranium-235 samples with neutrons expecting the Uranium-235 to capture neutrons. Instead, the products showed different chemical properties that they could not explain. Meitner & Frisch.

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Nuclear Fission & Fusion

Nuclear Fission & Fusion. History:. Hahn & Strassman (1939). Bombarded Uranium-235 samples with neutrons expecting the Uranium-235 to capture neutrons. Instead, the products showed different chemical properties that they could not explain. Meitner & Frisch.

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Nuclear Reactors and Nuclear Energy

Conversion of mass-energy to electrical energy mass-energy ? thermal ? kinetic ? electric Produces large amounts of electrical energy for large-scale use (city, province, country) small-scale: submarines, large ships Energy released by Fission of Uranium-235

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Aim: What is a half life of an element?

Aim: What is a half life of an element?. 212 Po 4 He +____. Do Now: Solve the following in your notes:. 142 Pm +____ 142 Nd. Half Life. The half-life is the amount of time it takes for half of the atoms in a sample to decay.

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