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. 12: Nuclear Chemistry
Topic
25. Usages of radioisotopes: Recalling concept facts and definitions
1. The course of a chemical reaction can be traced by using a 3) Stable isotope
1) Polar molecule
2) Diatomic molecule 4) Radioisotope
2. A radioisotope used to follow a chemical reaction is called 3) Calorimeter
1) Tracer
2) Isomer 4) Kinetics
3. A radioisotope is called a tracer when it is used to
1) Determine the age of animal skeletal remains 3) Kill cancerous tissue
2) Determine the course of a chemical reaction 4) Kill bacteria in food
4. Iodine-131 is used in diagnosing thyroid disorders because it is absorbed by the thyroid gland and
Teacher Preview Copy
Teacher Preview Copy
1) Has a very short half-life 3) Emits alpha particle
2) Has a very long half-life 4) Emits gamma radiation
5. Which procedure is based on the half-life of a radioisotope?
1) Accelerating to increase kinetic energy 3) Dating to determine age
2) Counting to determine a level of radioactivity
4) Radiating to kill cancer cells
6. Diagnostic injections of radioisotopes used in medicine normally have
1) Short half-lives and are quickly eliminated from the body
2) Short half-lives and are slowly eliminated from the body
3) Long half-lives and are quickly eliminated from the body
4) Long half-lives and are slowly eliminated from the body
26. Usages of radioisotopes: Determining isotope for common usage
1. Which nuclide is a radioisotope used in the study of organic reaction mechanism?
1) Carbon-12 2) Carbon – 14 3) Uranium – 235 4) Uranium – 238
2. Which radioisotope is used in diagnoses of thyroid disorder? 3) I-131 4) Fe-56
1) N-14
2) C-12
3. A radioisotope that is sometimes used in pinpointing brain tumor is
1) Technetium – 99 2) Lead – 206 3) Uranium – 238 4) Carbon – 12
4. Diagnosing of blood disorder could be done using which radioisotope?
56
14
206
131
1) I 2) Fe 3) C 4) Pb
5. A product is formed during a reaction between organic molecules. This reaction may be studied by
using which of the following radioisotope?
1) C-12 2) C-14 3) N-14 4) Fe-56
6. Geological dating can be done by comparing mineral remains of which two isotopes?
1) U-238 and U-235 3) U-238 and Pb-206
2) U-238 and Co-60 4) C-14 and Pb-206
7. Radioactive dating of the remains of organic materials can be done by comparing the ratio of which
two isotopes?
1) Uranium -235 to Uranium -238 3) Nitrogen-14 to Nitrogen-16
2) Carbon-14 to Carbon-12 4) Hydrogen-2 to Hydrogen-3
354 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
Topic
25. Usages of radioisotopes: Recalling concept facts and definitions
1. The course of a chemical reaction can be traced by using a 3) Stable isotope
1) Polar molecule
2) Diatomic molecule 4) Radioisotope
2. A radioisotope used to follow a chemical reaction is called 3) Calorimeter
1) Tracer
2) Isomer 4) Kinetics
3. A radioisotope is called a tracer when it is used to
1) Determine the age of animal skeletal remains 3) Kill cancerous tissue
2) Determine the course of a chemical reaction 4) Kill bacteria in food
4. Iodine-131 is used in diagnosing thyroid disorders because it is absorbed by the thyroid gland and
Teacher Preview Copy
Teacher Preview Copy
1) Has a very short half-life 3) Emits alpha particle
2) Has a very long half-life 4) Emits gamma radiation
5. Which procedure is based on the half-life of a radioisotope?
1) Accelerating to increase kinetic energy 3) Dating to determine age
2) Counting to determine a level of radioactivity
4) Radiating to kill cancer cells
6. Diagnostic injections of radioisotopes used in medicine normally have
1) Short half-lives and are quickly eliminated from the body
2) Short half-lives and are slowly eliminated from the body
3) Long half-lives and are quickly eliminated from the body
4) Long half-lives and are slowly eliminated from the body
26. Usages of radioisotopes: Determining isotope for common usage
1. Which nuclide is a radioisotope used in the study of organic reaction mechanism?
1) Carbon-12 2) Carbon – 14 3) Uranium – 235 4) Uranium – 238
2. Which radioisotope is used in diagnoses of thyroid disorder? 3) I-131 4) Fe-56
1) N-14
2) C-12
3. A radioisotope that is sometimes used in pinpointing brain tumor is
1) Technetium – 99 2) Lead – 206 3) Uranium – 238 4) Carbon – 12
4. Diagnosing of blood disorder could be done using which radioisotope?
56
14
206
131
1) I 2) Fe 3) C 4) Pb
5. A product is formed during a reaction between organic molecules. This reaction may be studied by
using which of the following radioisotope?
1) C-12 2) C-14 3) N-14 4) Fe-56
6. Geological dating can be done by comparing mineral remains of which two isotopes?
1) U-238 and U-235 3) U-238 and Pb-206
2) U-238 and Co-60 4) C-14 and Pb-206
7. Radioactive dating of the remains of organic materials can be done by comparing the ratio of which
two isotopes?
1) Uranium -235 to Uranium -238 3) Nitrogen-14 to Nitrogen-16
2) Carbon-14 to Carbon-12 4) Hydrogen-2 to Hydrogen-3
354 Copyright © 2010 E3 Scholastic Publishing. All Rights Reserved. Survivingchem.com
