Chapter 38: The Atom and the Quantum 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. It is useful to think of a photon as a packet of

Question 2 2. Which of these elements has the largest atomic radius?

Question 3 3. As you move from top to bottom on the periodic table, what happens to the atomic radius?

Question 4 4. An electron is traveling at 50 meters per second. If the mass of an electron is 9.1 x 10^-31, what is the de-Broglie wavelength of the electron?

Question 5 5. Who was the first to mathematically express the full concept of wave-particle duality?

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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. As you move from left to right on the periodic table, why does the atomic radius decrease?

Question 8 8. Which of the following is an example of light behaving like a particle?

Question 9 9. Which of the following defines wave-particle duality?

Question 10 10. Which of the following is an application of wave-particle duality?

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Question 11 11. When studying the photoelectric effect, scientists observed that _____were emitted from metal in response to a beam of light.

Question 12 12. Why do everyday objects not show wave properties?

Question 13 13. Which of these elements has the smallest atomic radius?

Question 14 14. Which of these elements has the largest atomic radius: argon, phosphorus, aluminum, sodium or magnesium?

Question 15 15. The theory of wave-particle duality states that all matter has properties of

Chapter 38: The Atom and the Quantum 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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