Nuclear Chemistry Quiz Questions And Answers – Flashcards
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Chemistry that involves changes of the nucleus of atoms and emittion of radiation
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Nuclear chemistry
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Flow of energy (in the form of waves) through space
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Radiation
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A substance that is radioactive if it has the ability to emit rays of energy from an unstable nucleus
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Radioactivity
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Penetrating rays and particles emitted by a radioactive source as a nucleus breaks down
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Nuclear radiation
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An isotope of a substance that is radioactive and has an unstable nucleus
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Radioisotope
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Sun, nuclear medicine with radioactive tracers, gamma knives in medicine
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Real life examples of nuclear radiation
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When a radioactive substance emits a helium nuclei
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Alpha radiation
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A radioactive nucleus can have a neutron from the nucleus break down, due to the fact that the neutron breaks down, an electron is formed
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Beta radiation
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Pure energy is released from the nucleus of an unstable radioisotope
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Gamma radiation
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High energy photon emitted by a radioisotope
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Gamma ray
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A nuclear reaction in which one element changes into a different element
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Transmutation
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How much time it takes to get 1/2 of a sample to undergo nuclear decay
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Half life
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Y axis: amount of substance X axis: time/# of half lives Exponential decay
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Draw half life graph
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When nucleus splits into smaller fragments ex. Power plants
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Fission
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2 smaller nuclei come together and make 1 larger nucleus ex. Stars
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Fusion
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E=mc squared
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Einstein equation showing that the missing mass was proportional to the binding energy
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Difference between the unbound system calculated mass and experimentally measured mass of nucleus
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Mass defect
