Conceptual Physical Science Explorations
Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Half Life
The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.
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Textbook Question
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Chapter 16, Problem 1RAT

A sample of radioactive material is usually a little warmer than its surroundings because

(a) it efficiently absorbs and releases energy from sunlight.

(b) its atoms are continually being struck by alpha and beta particles.

(c) it is radioactive.

(d) it emits alpha and beta particles.

Expert Solution & Answer
Check Mark
To determine

The correct option for the statement “A sample of radioactive material is usually a little warmer than its surroundings because”.

Answer to Problem 1RAT

The correct option for the statement “A sample of radioactive material is usually a little warmer than its surroundings because” is option (b).

Explanation of Solution

A radioactive material often radiates alpha and beta particles. Heavier nuclei decay into smaller nuclei by emitting alpha and beta particles. The interaction of these particles with the atoms of radioactive material imparts them more energy.

The surroundings are also exposed to sunlight. So, sunlight is not the factor that warms radioactive materials.

The radioactive material is radioactive and emits alpha and beta particles. But actually, the striking of these particles with the atoms imparts heat energy to the material.

Conclusion:

Therefore, the correct option for the statement “A sample of radioactive material is usually a little warmer than its surroundings because” is option (b).

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Chapter 16, Problem 4TS
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Chapter 16, Problem 2RAT

Chapter 16 Solutions

Conceptual Physical Science Explorations

Ch. 16 - Is radioactivity on the Earth something relatively...Ch. 16 - Prob. 2RQCh. 16 - Prob. 3RQCh. 16 - Prob. 4RQCh. 16 - What do flying in a commercial airliner and a...Ch. 16 - Prob. 6RQCh. 16 - Prob. 7RQCh. 16 - Why is the killing of cells by radioactivity...Ch. 16 - Prob. 9RQCh. 16 - When an element like thorium decays, does it...
Ch. 16 - Prob. 11RQCh. 16 - Prob. 12RQCh. 16 - What is the half-life of uranium-238?Ch. 16 - What happens to a nitrogen atom in the atmosphere...Ch. 16 - Prob. 15RQCh. 16 - Prob. 16RQCh. 16 - Prob. 17RQCh. 16 - Prob. 18RQCh. 16 - How does the mass of a pair of atoms that have...Ch. 16 - What kind of nuclear power is responsible for...Ch. 16 - Rank these three types of radiation by their...Ch. 16 - Prob. 2TCCh. 16 - Rank the following isotopes in order of their...Ch. 16 - Rank the following in order of most energy...Ch. 16 - Prob. 1TECh. 16 - Prob. 2TECh. 16 - Prob. 3TECh. 16 - The isotope cesium-137, which has a half life of...Ch. 16 - How is carbon-14 produced in the atmosphere?Ch. 16 - Prob. 6TECh. 16 - Prob. 7TECh. 16 - Why is lead found in all deposits of uranium ones?Ch. 16 - What does the proportion of lead and uranium in...Ch. 16 - Prob. 10TECh. 16 - Your tutor says that atomic nuclei are converted...Ch. 16 - Prob. 12TECh. 16 - How does the mass per nucleon in uranium compare...Ch. 16 - When a pair of hydrogen isotopes are fused, is the...Ch. 16 - Prob. 15TECh. 16 - Prob. 16TECh. 16 - Prob. 17TECh. 16 - Prob. 18TECh. 16 - Prob. 19TECh. 16 - Prob. 20TECh. 16 - Prob. 1TSCh. 16 - Consider a radioactive sample with a half-life of...Ch. 16 - A radioisotope is placed near a radiation...Ch. 16 - Uranium-238 absorbs a neutron and then emits a...Ch. 16 - A sample of radioactive material is usually a...Ch. 16 - Prob. 2RATCh. 16 - Prob. 3RATCh. 16 - When a uranium nucleus emits an alpha particle,...Ch. 16 - Prob. 5RATCh. 16 - Prob. 6RATCh. 16 - A certain radioactive element has a half-life of 1...Ch. 16 - Prob. 9RATCh. 16 - If an iron nucleus split in two, its fission...

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