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Standardized Test Preparation. Chapter 4. Preview. Multiple Choice Short Answer Extended Response. Multiple Choice. 1. Which of the following relationships is true? A. Higher-energy light has a higher frequency than lower-energy light does.

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  1. Standardized Test Preparation Chapter 4 Preview • Multiple Choice • Short Answer • Extended Response

  2. Multiple Choice 1. Which of the following relationships is true? A.Higher-energy light has a higher frequency than lower-energy light does. B.Higher-energy light has a longer wavelength than lower-energy light does. C.Higher-energy light travels at a faster speed than lower-energy light does. D.Higher-frequency light travels at a slower speed than lower-energy light does. Standardized Test Preparation Chapter 4

  3. 1. Which of the following relationships is true? A. Higher-energy light has a higher frequency than lower-energy light does. B.Higher-energy light has a longer wavelength than lower-energy light does. C.Higher-energy light travels at a faster speed than lower-energy light does. D.Higher-frequency light travels at a slower speed than lower-energy light does. Standardized Test Preparation Chapter 4 Multiple Choice

  4. 2. The energy of a photon is greatest for A.visible light. B.ultraviolet light. C.infrared light. D.X-ray radiation. Standardized Test Preparation Chapter 4 Multiple Choice

  5. 2. The energy of a photon is greatest for A.visible light. B.ultraviolet light. C.infrared light. D. X-ray radiation. Standardized Test Preparation Chapter 4 Multiple Choice

  6. 3. What is the wavelength of radio waves that have a frequency of 88.5 MHz? A. 3.4 m B. 8.9 nm C. 0.30 m D. 300 nm Standardized Test Preparation Chapter 4 Multiple Choice

  7. 3. What is the wavelength of radio waves that have a frequency of 88.5 MHz? A. 3.4 m B. 8.9 nm C. 0.30 m D. 300 nm Standardized Test Preparation Chapter 4 Multiple Choice

  8. 4. Which transition in an excited hydrogen atom will emit the longest wavelength of light? A. E5 to E1 B. E4 to E1 C. E3 to E1 D. E2 to E1 Standardized Test Preparation Chapter 4 Multiple Choice

  9. 4. Which transition in an excited hydrogen atom will emit the longest wavelength of light? A. E5 to E1 B. E4 to E1 C. E3 to E1 D. E2 to E1 Standardized Test Preparation Chapter 4 Multiple Choice

  10. 5. Which of the following quantum numbers is often designated by the letters s, p, d, and f instead of by numbers? A. n B. l C. m D. s Standardized Test Preparation Chapter 4 Multiple Choice

  11. 5. Which of the following quantum numbers is often designated by the letters s, p, d, and f instead of by numbers? A. n B. l C. m D. s Standardized Test Preparation Chapter 4 Multiple Choice

  12. 6. Which quantum number is related to the shape of an orbital? A. n B. l C. m D. s Standardized Test Preparation Chapter 4 Multiple Choice

  13. 6. Which quantum number is related to the shape of an orbital? A. n B. l C. m D. s Standardized Test Preparation Chapter 4 Multiple Choice

  14. 7. What is the maximum number of unpaired electrons that can be placed in a 3p sublevel? A. 1 B. 2 C. 3 D. 4 Standardized Test Preparation Chapter 4 Multiple Choice

  15. 7. What is the maximum number of unpaired electrons that can be placed in a 3p sublevel? A. 1 B. 2 C. 3 D. 4 Standardized Test Preparation Chapter 4 Multiple Choice

  16. 8. What is the maximum number of electrons that can occupy a 3s orbital? A. 1 B. 2 C. 6 D. 10 Standardized Test Preparation Chapter 4 Multiple Choice

  17. 8. What is the maximum number of electrons that can occupy a 3s orbital? A. 1 B. 2 C. 6 D. 10 Standardized Test Preparation Chapter 4 Multiple Choice

  18. 9. Which element has the noble-gas notation [Kr]5s24d2? A. Se B. Sr C. Zr D. Mo Standardized Test Preparation Chapter 4 Multiple Choice

  19. 9. Which element has the noble-gas notation [Kr]5s24d2? A. Se B. Sr C. Zr D. Mo Standardized Test Preparation Chapter 4 Multiple Choice

  20. 10. When a calcium salt is heated in a flame, a photon of light with an energy of 3.2 × 10−19 J is emitted. On the basis of this fact and the table below, what color would be expected for the calcium flame? Standardized Test Preparation Chapter 4 Short Answer

  21. 10. When a calcium salt is heated in a flame, a photon of light with an energy of 3.2 × 10−19 J is emitted. What color would be expected for the calcium flame? Answer:The color will be orange. Converting energy into frequency gives 4.8 × 1014, which corresponds to the frequency of orange light. Standardized Test Preparation Chapter 4 Short Answer

  22. 11. The electron configuration of sulfur is 1s22s22p63s23p4. Write the orbital notation for sulfur. Standardized Test Preparation Chapter 4 Short Answer

  23. 11. The electron configuration of sulfur is 1s22s22p63s23p4. Write the orbital notation for sulfur. Answer: Standardized Test Preparation Chapter 4 Short Answer 3s 1s 2s 3p 2p

  24. 12. Explain the reason for the hydrogen line-emission spectrum. Standardized Test Preparation Chapter 4 Extended Response

  25. 12. Explain the reason for the hydrogen line-emission spectrum. Answer: Electrons in atoms can occupy orbitals of only specific energies. When an atom is excited, the electron is no longer in the ground state. When the electron returns to a lower energy level, light is emitted. Because only specific energies are allowed, certain wavelengths of light are emitted, giving rise to the individual lines in the spectrum. Standardized Test Preparation Chapter 4 Extended Response

  26. 13. When blue light shines on potassium metal in a photocell, electrons are emitted. But when yellow light shines on the metal, no current is observed. Explain. Standardized Test Preparation Chapter 4 Extended Response

  27. 13. When blue light shines on potassium metal in a photocell, electrons are emitted. But when yellow light shines on the metal, no current is observed. Explain. Answer: Photons of blue light are higher energy than photons of yellow light. Electrons can be emitted only when a photon of sufficient energy strikes the surface of the metal. Therefore, the energy of blue light is greater than the threshold energy, but the energy of yellow light is not. Standardized Test Preparation Chapter 4 Extended Response

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