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Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692

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Section
BuyFindarrow_forward

Chemistry In Focus

7th Edition
Tro + 1 other
Publisher: Cengage Learning,
ISBN: 9781337399692
Chapter 8, Problem 1E
Textbook Problem
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On a molecular level, explain how radioactivity occurs and how it can be harmful to living organisms.

Interpretation Introduction

Interpretation:

The occurrence of radioactivity and its harmful effect on a living organism on a molecular level are to be explained.

Concept Introduction:

Radioactivity is the property of the substances which emit radiation.

Radioactivity or radioactive decay is the process of emission of very small high-energy particles from the unstable nuclei of a radioactive atom.

Explanation of Solution

The emission of tiny, high-energy particles from the unstable nuclei of some atoms is called radioactivity. It is also known as radioactive decay. The atoms that undergo radioactive decay are called radioactive atoms.

The radioactive atoms possess unstable nuclei, which emit radiations like alpha rays, beta rays or gamma rays in order to become stable. Therefore, radioactivity originates from the unstable nuclei of radioactive atoms...

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Chapter 8 Solutions

Chemistry In Focus
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Ch. 8 - Which problem is not associated with nuclear power...Ch. 8 - Why do fusion and fission both give off energy? a....Ch. 8 - On a molecular level, explain how radioactivity...Ch. 8 - For each of the following scientists, explain...Ch. 8 - Explain the differences among alpha, beta, and...Ch. 8 - Explain what is meant by half-life. What is its...Ch. 8 - Where is radon found, and why is it a potential...Ch. 8 - Describe nuclear fission, and write a nuclear...Ch. 8 - Who persuaded Roosevelt to put forth the resources...Ch. 8 - What is a critical mass, and how does it relate to...Ch. 8 - Explain the importance of each of the following...Ch. 8 - Describe experiments termed tickling the dragon....Ch. 8 - What is the difference between the fission...Ch. 8 - Describe the two designs, Fat Man and Little Boy,...Ch. 8 - What drove the scientists involved in the...Ch. 8 - Sketch a nuclear reactor, and explain how fission...Ch. 8 - Define mass defect and nuclear binding energy.Ch. 8 - Where does the energy associated with nuclear...Ch. 8 - What is the China syndrome?Ch. 8 - What are the two main problems associated with...Ch. 8 - What is being done to deal with nuclear waste?Ch. 8 - Describe the accidents at Three Mile Island,...Ch. 8 - What is fusion? Write a nuclear equation to...Ch. 8 - What are the technical difficulties associated...Ch. 8 - Explain the meaning of Q for fusion. What values...Ch. 8 - Explain the difference between exposure to...Ch. 8 - How does radiation affect humans at low exposures...Ch. 8 - Can radiation induce genetic changes in humans or...Ch. 8 - Explain how C-14 dating and U-238 dating work.Ch. 8 - According to U-238 dating techniques, what is the...Ch. 8 - Why can radiation, which is known to induce...Ch. 8 - How is radiation used to obtain images of internal...Ch. 8 - Writing Nuclear Equations Write nuclear equations...Ch. 8 - Write nuclear equations to represent each process:...Ch. 8 - Fill in the blank for each of the following...Ch. 8 - Fill in the blank for each of the following...Ch. 8 - Write a set of nuclear equations to represent the...Ch. 8 - Write a set of nuclear equations to represent the...Ch. 8 - Francium-223 decays to polonium-215 via three...Ch. 8 - Bismuth-215 decays to bismuth-211 via three decay...Ch. 8 - Half-Life I-131 has a half-life of 8.04 days. If a...Ch. 8 - Tc-99 is often used in medicine and has a half-...Ch. 8 - If the decay of each Tc-99 atom in problem 40...Ch. 8 - Nuclear Fission and Fusion Write a nuclear...Ch. 8 - Uranium-235 undergoes neutron-induced fission to...Ch. 8 - Write a nuclear equation to represent the fusion...Ch. 8 - The fusion of H-3 with H-l forms H-4. Write a...Ch. 8 - Radiation Exposure If a man is exposed to...Ch. 8 - If a woman is exposed to 0.57mSv/yr of radiation...Ch. 8 - Carbon and Uranium Dating The carbon in a fossil...Ch. 8 - The carbon in a human skull found in South America...Ch. 8 - The C-14 in an ancient scroll is 50% of that found...Ch. 8 - The C-14 in the skeleton of a wooly mammoth is...Ch. 8 - The percentages of uranium and lead in a meteorite...Ch. 8 - A rock that was originally all uranium contains...Ch. 8 - Nuclear Medicine A patient is given 0.080 mg of...Ch. 8 - A radioactive medical sample contains 2.88...Ch. 8 - Even though his discovery was fortuitous,...Ch. 8 - Several medical applications require the ingestion...Ch. 8 - Several radioactive isotopes are present in a...Ch. 8 - Could terrorists build a nuclear bomb from uranium...Ch. 8 - In Chapter 1, we learned that Lavoisier formulated...Ch. 8 - Why do nations stockpile nuclear weapons instead...Ch. 8 - Should we have dropped the bomb on unpopulated...Ch. 8 - It is clearly unethical to study the effects of...Ch. 8 - Is it ethical to intentionally expose animals to...Ch. 8 - The figure below represents the decay of N-16 by...Ch. 8 - The figure below represents the decay of Na-20 by...

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