Exam 10: Nuclear Chemistry

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What is the estimated the age of an artifact that has 1/16 of the amount of carbon-14 (relative to carbon-12)compared to living organisms. (C-14 t1/2 = 5, 730 years)

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D

Alpha emission is the decay of a nucleus by emitting an α\alpha particle, resulting in a new nucleus that has two fewer protons than the original nucleus.

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Which nuclear equation is an example of positron emission?

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PET scans are used to detect tumors and coronary artery disease, determine whether cancer has spread to other organs of the body, and monitor whether cancer treatment has been successful.

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Generally, no detectable biological effects are noticed when the dose of radiation is less than 25 rem.

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What is the minimum recommended protective equipment when handling a beta particle emitter?

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Which nuclear equation is an example of nuclear fusion?

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Which nuclear equation is an example of nuclear fission?

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A radiation source used external to the body for therapeutic purposes must have a much shorter half-life than radioisotopes that are ingested for diagnostic purposes.

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Cobalt-60 is used as an external source of radiation for cancer treatment.

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To decrease the incidence of harmful bacteria in foods, certain fruits and vegetables are irradiated with γ\gamma rays that kill any bacteria contained in them.

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A positron is formed when a neutron is converted to a proton and an electron.

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The balanced nuclear equation for the decay of radon-220 by α\alpha decay is  The balanced nuclear equation for the decay of radon-220 by  \alpha decay is   . .

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The m in technetium-99m stands for _____.

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Which radioisotope is used to measure thyroid activity and treat thyroid disease?

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Red blood cells tagged with technetium-99m are used to find the site of a gastrointestinal bleed.

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Uranium-235 is used in nuclear weapons. This radioactive isotope contains 92 protons and 235 neutrons.

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Which species completes the nuclear equation shown below?  Which species completes the nuclear equation shown below?   +    \rightarrow  _____ +   +  Which species completes the nuclear equation shown below?   +    \rightarrow  _____ +   →\rightarrow _____ +  Which species completes the nuclear equation shown below?   +    \rightarrow  _____ +

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Isotopes are atoms of the same element having a different number of protons.

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Nuclear fission reactions generate radioactive waste with long half-lives, often hundreds or even thousands of years.

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