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CSET Science Subtest II Chemistry (218): Practice & Study Guide  /  Science Courses

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Overview of Nuclear Processes Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

Page 1

Question 1 1. Becky was recently diagnosed with an aggressive brain tumor. Her oncologist recommended treating the tumor with cobalt-60 due to its precision with treating this type of cancer. This substance is being used for _____.

Question 2 2. Rochelle has been experiencing fatigue, depression, and has had difficulty concentrating. Her physician believes she has an underperforming thyroid and wants to run some tests. Iodine-131 will be used to study the activity of Rochelle's thyroid. This substance is an example of _____.

Question 3 3. Which of the following statements is NOT true regarding the process of nuclear fusion?

Question 4 4. An element undergoes gamma decay to form lead-206. What was the identity of that initial element?

Question 5 5. When neptunium-238 decays, it emits two alpha particles, a beta particle, and a gamma particle. The resulting isotope is:

Page 2

Question 6 6. What is the product of a cobalt-60 atom that undergoes two beta decays?

Question 7 7. Which of the following has a mass of 1 and an atomic number of 1?

Question 8 8. Which of the following is really just a high-energy electron?

Question 9 9. Which of the following has no mass and does not change the composition of the nucleus?

Question 10 10. Which of the following types of radiation involve the release of an electron and can penetrate part way into the skin?

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Question 11 11. Which type of radiation does not involve a particle?

Question 12 12. Which type of radiation can only be stopped by dense materials such as lead?

Question 13 13. What does Einstein's famous E=mc-squared equation tell us?

Question 14 14.

Calculate the disintegration energy for the pictured reaction. 1 atomic mass unit equals 1.66 x 10^-27 kilograms.

Atomic weights:

Ra-222: 223.018502 u.

He: 4.001505 u.

Rd-218: 218.005601 u.

Question 15 15. How do you calculate the disintegration energy in a decay reaction?

Page 4

Question 16 16. Which of the following terms is used to describe the process by which an unstable atomic nucleus loses energy by releasing radiation?

Question 17 17. Which of the following terms is used to describe the time required for a quantity to fall to half of its starting value?

Question 18 18. In uranium-lead dating, we see that two unstable uranium isotopes decay into stable lead isotopes. Which of the following statements is true about this decay?

Question 19 19. What is the energy required to break a nucleus into its individual nucleons called?

Question 20 20. The difference between the mass of the nucleus and the sum of each individual nucleon is:

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Question 21 21. During a nuclear reaction, mass is lost. Which of the following does this result in?

Question 22 22. A 6.95 gram sample of radioactive nobelium-259 has a half-life of 58 min. How much is left after 2 hours and 54 minutes?

Question 23 23. Cobalt-57 has a half-life of about 272 days. If a sample has an initial mass of 2.24 grams and undergoes decay until it has a mass of 0.140 grams, then how many half-lives passed?

Question 24 24. If a substance has a half-life of 5 years, then how much of the initial sample remains after 15 years?

Question 25 25. The type of nuclear power that occurs when a heavier atom splits into smaller pieces, which is the most common on Earth is known as _____.

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Question 26 26. When polonium-218 decays, it emits a beta particle, followed by an alpha particle. The resulting isotope is:

Question 27 27. Despite human skin providing protection against alpha particles, why is it dangerous to ingest alpha particles?

Question 28 28. Use the clue to identify the type of radiation: cannot penetrate a piece of paper.

Question 29 29. What is radioactive decay?

Question 30 30. Which of the following statements is true of radiocarbon dating?

Overview of Nuclear Processes Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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