Quantum Chemistry 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!

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Question 1 1. The charges on beta particles (Β - ), alpha particles (α) and gamma (γ) rays are _____ respectively.

Question 2 2. Which of the following has a mass of 1 and an atomic number of 1?

Question 3 3. The Bohr model of the atom:

Question 4 4. Two artifacts have recently been discovered. After testing, it is found that Artifact A has 20% of carbon-14 in it, while Artifact B has 35% of carbon-14 in it. Which of the two artifacts is the OLDEST?

Question 5 5. Which of the following has no mass and does not change the composition of the nucleus?

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Question 6 6. Scientists questioned the wave theory of light when they saw that increasing the light intensity would only increase the _____ of emitted electrons.

Question 7 7. When polonium-218 decays, it emits a beta particle, followed by an alpha particle. The resulting isotope is:

Question 8 8. Despite human skin providing protection against alpha particles, why is it dangerous to ingest alpha particles?

Question 9 9. The formation of uranium-236 from plutonium-240 occurs by:

Question 10 10. Which of the following can be shielded by a piece of paper?

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Question 11 11. If a substance has a half-life of 5 years, then how much of the initial sample remains after 15 years?

Question 12 12. The difference between the mass of the nucleus and the sum of each individual nucleon is:

Question 13 13. When does nuclear fusion occur?

Question 14 14. Why should you avoid looking directly at magnesium burning?

Question 15 15. Which of the following is really just a high-energy electron?

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Question 16 16. 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 17 17. Which of the following is an example when an electron absorbs energy?

Question 18 18. What is the energy required to break a nucleus into its individual nucleons called?

Question 19 19. The equation E = mc2 shows that mass and energy are:

Question 20 20. An element undergoes gamma decay to form lead-206. What was the identity of that initial element?

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Question 21 21. The equation E = mc2 shows that a small amount of mass creates _____.

Question 22 22. Carbon-10 has a half-life of about 19 seconds. How many half-lives does it undergo in 2 minutes and 32 seconds?

Question 23 23. During a nuclear reaction, mass is lost. Which of the following does this result in?

Question 24 24. Which particles are present in the nucleus of an atom?

Question 25 25. When studying the photoelectric effect, scientists observed that _____were emitted from metal in response to a beam of light.

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Question 26 26. 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 27 27. 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 _____.

Question 28 28. How does a nuclear reaction differ from a chemical reaction?

Question 29 29. When writing electron configurations, electrons are represented in their lowest possible energy state, called their _____.

Question 30 30. When neptunium-238 decays, it emits two alpha particles, a beta particle, and a gamma particle. The resulting isotope is:

Quantum Chemistry 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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