Introductory Chemistry Study Set 7

Chemistry

Quiz 15 :

Nuclear Chemistry

Quiz 15 :

Nuclear Chemistry

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According to Albert Einstein's theory of relativity, energy (E) and mass (m) are related by the following equation: E = mc where c is the speed of light, or 3.00 × 108 m/s.
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False

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Dubnium has an atomic number of 105. When dubnium-262 emits an alpha particle, _____ is the resulting daughter isotope.
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B

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Neptunium has an atomic number of 93. When _____ emits an alpha particle, neptunium-239 is the resulting daughter isotope.
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D

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Nuclear fusion is the breaking down of large nuclei into smaller nuclei, usually with the release of excess neutrons.
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An img atom has13 neutrons in its nucleus.
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Only radioactive isotopes have a half-life.
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Uranium-238 can absorb a neutron and undergo a fission reaction to produce an atom of cesium-135 and an atom of rubidium-96. The balanced nuclear equation for the process is img
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A img atom has 5 protons in its nucleus.
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An alpha particle is a collection of four protons and five neutrons and is equivalent to a beryllium nucleus.
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The product in the nuclear equation is the daughter isotope.
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Polonium has an atomic number of 84. When polonium-209 emits an alpha particle, the resulting daughter isotope is _____.
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An isotope with a longer half-life is generally considered more radioactive.
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The reactant in the nuclear equation is the parent isotope.
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Francium has an atomic number of 87. Which of the following is the nuclear equation that represents the radioactive decay of francium-223 by alpha particle?
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A beta particle is a neutron emitted from the nucleus.
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Gamma rays are high-energy electromagnetic radiation given off in radioactive decay.
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Complete the reaction. img
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Actinium has an atomic number of 89. When _____ emits an alpha particle, actinium-227 is the resulting daughter isotope.
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Alpha particles penetrate more than beta particles.
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A chain reaction is a process that generates more reaction pathways for each previous reaction.
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