Ch.7 Quantum Theory And Atomic Structure Verified Test Bank

Chapter 7 Test Bank

Quantum Theory and Atomic Structure

1. Who was the first scientist to propose that the atom had a dense nucleus that occupied only a small fraction of the volume of the atom?

A. Planck

B. Bohr

C. Rydberg

D. Rutherford

E. Thomson

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Structure of the Atom

Topic: Components of Matter

2. Who was the first scientist to propose that an object could emit only certain amounts of energy?

A. Planck

B. Einstein

C. Bohr

D. Rydberg

E. de Broglie

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

3. Who proposed a model that successfully explained the photoelectric effect?

A. Planck

B. Einstein

C. Compton

D. Rydberg

E. Bohr

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Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

4. Who developed an empirical equation from which the wavelengths of lines in the spectrum of hydrogen atoms can be calculated?

A. Planck

B. de Broglie

C. Bohr

D. Rutherford

E. Rydberg

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

5. Which scientist first proposed that the electron in the hydrogen atom can have only certain energies?

A. Planck

B. Einstein

C. Bohr

D. Rydberg

E. Heisenberg

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Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

6. Which scientist first proposed that particles of matter could have wave properties?

A. Einstein

B. Planck

C. de Broglie

D. Compton

E. Heisenberg

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Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

7. Which scientist demonstrated that photons transferred momentum during collisions with matter?

A. Bohr

B. de Broglie

C. Planck

D. Compton

E. Billiard

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

8. Who proposed the principle that states that one cannot simultaneously know the exact position and velocity of a particle?

A. Einstein

B. Planck

C. Heisenberg

D. Compton

E. de Broglie

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Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

9. Which word best describes the phenomenon which gives rise to a rainbow?

A. reflection

B. dispersion

C. diffraction

D. interference

E. deflection

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

10. Contact lenses can focus light due to the ____________ of the waves.

A. diffraction

B. reflection

C. refraction

D. dispersion

E. interference

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

11. The interference pattern seen when light passes through narrow, closely spaced slits, is due to

A. diffraction.

B. reflection.

C. refraction.

D. dispersion.

E. deflection.

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

12. Interference of light waves

A. separates light into its component colors.

B. creates a pattern of light and dark regions.

C. focuses a broad beam of light into a point.

D. bends light as it passes the edge of an object.

E. creates a laser beam.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

13. Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy.

A. radio, visible, infrared, ultraviolet

B. infrared, visible, ultraviolet, microwave

C. visible, ultraviolet, infrared, gamma rays

D. X-radiation, visible, infrared, microwave

E. microwave, infrared, visible, ultraviolet

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

14. Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy.

A. radio, infrared, ultraviolet, gamma rays

B. radio, ultraviolet, infrared, gamma rays

C. gamma rays, infrared, radio, ultraviolet

D. gamma rays, ultraviolet, infrared, radio

E. infrared, ultraviolet, radio, gamma rays

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

15. Which of the following frequencies of electromagnetic radiation has the shortest wavelength?

A. 1 kilohertz

B. 1 terahertz

C. 1 dekahertz

D. 1 gigahertz

E. 1 megahertz

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Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

16. Select the arrangement of electromagnetic radiation which starts with the lowest wavelength and increases greatest wavelength.

A. radio, infrared, ultraviolet, gamma rays

B. radio, ultraviolet, infrared, gamma rays

C. gamma rays, radio, ultraviolet, infrared

D. gamma rays, infrared, radio, ultraviolet

E. gamma rays, ultraviolet, infrared, radio

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

17. Electromagnetic radiation can be specified by its wavelength ( ), its frequency ( ) or its period (). The period is the time it takes one complete wavelength to pass a point in space. Based on this information, what is the mathematical relationship between and ?

A.  = 1/

B.  = 

C.  = /

D.  =  × 

E.  = /

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

18. Electromagnetic radiation of 500 nm wavelength lies in the __________ region of the spectrum.

A. infrared

B. visible

C. ultraviolet

D. X–ray

E. –ray

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

19. The FM station KDUL broadcasts music at 99.1 MHz. Find the wavelength of these waves.

A. 1.88 × 10^–2 m

B. 0.330 m

C. 3.03 m

D. 5.33 × 10² m

E. > 10³ m

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

20. The AM station KBOR plays your favorite music from the 20's and 30's at 1290 kHz. Find the wavelength of these waves.

A. 4.30 × 10^–2 m

B. 0.144 m

C. 6.94 m

D. 232 m

E. > 10³ m

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

21. An infrared wave has a wavelength of 6.5 × 10^–4 cm. What is this distance in angstroms, Å?

A. 6.5 × 10^–4 Å

B. 2.2 × 10^–4 Å

C. 4.6 × 10³ Å

D. 6.5 × 10⁴ Å

E. 6.5 × 10⁶ Å

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Easy

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

22. A radio wave has a frequency of 8.6 × 10⁸ Hz. What is the energy of one photon of this radiation?

A. 7.7 × 10^–43 J

B. 2.3 × 10^–34 J

C. 5.7 × 10^–25 J

D. 1.7 × 10^–16 J

E. > 10^–15 J

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Easy

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

23. Infrared radiation from the sun has a wavelength of 6200 nm. Calculate the energy of one photon of that radiation.

A. 4.l × 10^–39 J

B. 4.l × 10^–30 J

C. 3.2 × 10^–29 J

D. 3.2 × 10^–26 J

E. between 10^–20 and 10^–19 J

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

24. Green light has a wavelength of 5200 Å. Calculate the energy of one photon of green light.

A. 3.4 × 10^–40 J

B. 3.4 × 10^–30 J

C. 3.8 × 10^–29 J

D. 3.4 × 10^–27 J

E. 3.8 × 10^–19 J

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

25. If the energy of a photon is 1.32 × 10^–18 J, what is its wavelength in nm?

A. 1.50 × 10^–7 nm

B. 150. nm

C. 1.99 × 10¹⁵ nm

D. 1.99 × 10²⁴ nm

E. None of these choices are correct.

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

26. A photon has an energy of 5.53 × 10^–17 J. What is its frequency in s^–1?

A. 3.66 × 10^–50 s^–1

B. 1.20 × 10^–17 s^–1

C. 3.59 × 10^–9 s^–1

D. 2.78 × 10⁸ s^–1

E. 8.35 × 10¹⁶ s^–1

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Bloom's: 3. Apply

Difficulty: Easy

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

27. A modern compact fluorescent lamp contains 1.4 mg of mercury. If each mercury atom in the lamp were to emit a single photon of wavelength 254 nm, how many joules of energy would be emitted?

A. 7.8 × 10^–19 J

B. 3.3 J

C. 6.6 × 10² J

D. 3.3 × 10³ J

E. 4.2 × 10¹⁸ J

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

28. For potassium metal, the work function (the minimum energy needed to eject an electron from the metal surface) is 3.68 × 10^–19 J. Which is the longest wavelength of the following which could excite photoelectrons?

A. 550. nm

B. 500. nm

C. 450. nm

D. 400. nm

E. 350. nm

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

29. Platinum, which is widely used as a catalyst, has a work function (the minimum energy needed to eject an electron from the metal surface) of 9.05 × 10–¹⁹ J. What is the longest wavelength of light which will cause electrons to be emitted?

A. 2.196 × 10^–7 m

B. 4.553 × 10^–6 m

C. 5.654 × 10² m

D. 1.370 × 10¹⁵ m

E. > 10⁶ m

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

30. In the photoelectric effect, a photon with an energy of 5.3 × 10–¹⁹ J strikes an electron in a metal. Of this energy, 3.6 × 10–¹⁹ J is the minimum energy required for the electron to escape from the metal. The remaining energy appears as kinetic energy of the photoelectron. What is the velocity of the photoelectron, assuming it was initially at rest?

A. 3.7 × 10¹⁴ m/s

B. 3.7 × 10¹¹ m/s

C. 1.9 × 10⁶ m/s

D. 6.1 × 10⁵ m/s

E. 1.7 × 10^–19 m/s

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Hard

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

31. Consider the following adjectives used to describe types of spectrum: continuous line atomic emission absorption

How many of them are appropriate to describe the spectrum of radiation given off by a black body?

A. none

B. one

C. two

D. three

E. four

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

32. Consider the following adjectives used to describe types of spectrum:

Continuous line atomic emission absorption

How many of them are appropriate to describe the spectrum of radiation absorbed by a sample of mercury vapor?

A. one

B. two

C. three

D. four

E. five

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

33. What type of spectrum, if any, would be produced if the light radiated by a heated atomic gas were to be dispersed through a prism?

A. a continuous band of color

B. a continuous band of color with some dark lines (missing wavelengths)

C. only blue light

D. only red light

E. discrete lines of different colors

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

34. Use the Rydberg equation to calculate the frequency of a photon absorbed when the hydrogen atom undergoes a transition from n₁ = 2 to n₂ = 4. (R = 1.096776 × 10⁷ m^–1)

A. 2.056 × 10⁶ s^–1

B. 2.742 × 10⁶ s^–1

C. 6.165 × 10¹⁴ s^–1

D. 8.226 × 10¹⁴ s^–1

E. > 10¹⁵ s^–1

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Hard

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

35. Line spectra from all regions of the electromagnetic spectrum, including the Paschen series of infrared lines for hydrogen, are used by astronomers to identify elements present in the atmospheres of stars. Calculate the wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 1.096776 × 10⁷ m^–1)

A. 205.1 nm

B. 384.6 nm

C. 683.8 nm

D. 1282 nm

E. > 1500 nm

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

36. According to the Rydberg equation, the line with the shortest wavelength in the emission spectrum of atomic hydrogen is predicted to lie at a wavelength (in nm) of

A. 91.2 nm.

B. 1.10 × 10^–2 nm.

C. 1.10 × 10² nm.

D. 1.10 × 10¹⁶ nm.

E. None of these choices are correct.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Hard

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

37. According to the Rydberg equation, the longest wavelength (in nm) in the series of H-atom lines with n₁ = 3 is

A. 1875 nm.

B. 1458 nm.

C. 820. nm.

D. 656 nm.

E. 365 nm.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Hard

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

38. An electron in the n = 6 level emits a photon with a wavelength of 410.2 nm. To what energy level does the electron move?

A. n = 1

B. n = 2

C. n = 3

D. n = 4

E. n = 5

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

39. The Bohr theory of the hydrogen atom predicts the energy difference (in J) between the n = 3 and the n = 5 state to be

A. 8.72 × 10^–20 J.

B. 1.36 × 10^–19 J.

C. 2.42 × 10^–19 J.

D. 1.55 × 10^–19 J.

E. 1.09 × 10^–18 J.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

40. Excited hydrogen atoms radiate energy in the

A. infrared region only.

B. visible region only.

C. ultraviolet region only.

D. visible and ultraviolet regions only.

E. infrared, visible, and ultraviolet regions.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

41. According to the Bohr theory of the hydrogen atom, the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state is

A. 2.18 × 10^–18 J.

B. 1.64 × 10^–18 J.

C. 5.45 × 10^–19 J.

D. 3.03 × 10^–19 J.

E. None of these choices are correct.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

42. The ionization energy is the energy needed to remove an electron from an atom. In the Bohr model of the hydrogen atom, this means exciting the electron to the n = ∞ state. What is the ionization energy in kJ/mol, for hydrogen atoms initially in the n = 2 energy level?

A. 290 kJ/mol

B. 328 kJ/mol

C. 656 kJ/mol

D. 983 kJ/mol

E. 1311 kJ/mol

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

43. For all the allowed vibration(s) (wavelength(s)) of a plucked guitar string, what is the correct relationship between the length of the string, L, and the wavelength, ?

A. L = /2

B. L =

C. L = n /2 where n is a positive integer

D. L = n where n is a positive integer

E. L = 1/

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

44. A sprinter must average 24.0 mi/h to win a 100-m dash in 9.30 s. What is his wavelength at this speed if his mass is 84.5 kg?

A. 7.29 × 10^–37 m

B. 3.26 × 10^–37 m

C. 5.08 × 10^–30 m

D. 1.34 × 10^–30 m

E. None of these choices are correct.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

45. The de Broglie equation predicts that the wavelength (in m) of a proton moving at 1000. m/s is

A. 3.96 × 10^–10 m.

B. 3.96 × 10^–7 m.

C. 2.52 × 10⁶ m.

D. 2.52 × 10⁹ m.

E. > 10¹⁰ m.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

46. According to the Heisenberg uncertainty principle, if the uncertainty in the speed of an electron is 3.5 × 10³ m/s, the uncertainty in its position (in m) is at least

A. 1.7 × 10^–8 m.

B. 6.6 × 10^–8 m.

C. 17 m.

D. 66 m.

E. None of these choices are correct.

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

47. The size of an atomic orbital is associated with

A. the principal quantum number (n).

B. the angular momentum quantum number (l).

C. the magnetic quantum number (m_l).

D. the spin quantum number (m_s).

E. the angular momentum and magnetic quantum numbers, together.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

48. The shape of an atomic orbital is associated with

A. the principal quantum number (n).

B. the angular momentum quantum number (l).

C. the magnetic quantum number (m_l).

D. the spin quantum number (m_s).

E. the magnetic and spin quantum numbers, together.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

49. The orientation in space of an atomic orbital is associated with

A. the principal quantum number (n).

B. the angular momentum quantum number (l).

C. the magnetic quantum number (m_l).

D. the spin quantum number (ms).

E. None of these choices are correct.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

50. Atomic orbitals developed using quantum mechanics

A. describe regions of space in which one is most likely to find an electron.

B. describe exact paths for electron motion.

C. give a description of the atomic structure which is essentially the same as the Bohr model.

D. allow scientists to calculate an exact volume for the hydrogen atom.

E. are in conflict with the Heisenberg Uncertainty Principle.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

51. In an atom, the square of an electron's wave function

A. becomes zero at the nucleus.

B. is smallest near the nucleus.

C. is largest near the nucleus.

D. may be zero at more than one point.

E. tends to infinity at large distances from the nucleus.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

52. The energy of an electron in the hydrogen atom is determined by

A. the principal quantum number (n) only.

B. the angular momentum quantum number (l) only.

C. the principal and angular momentum quantum numbers (n & l ).

D. the principal and magnetic quantum numbers (n & m_l).

E. the principal, angular momentum and magnetic quantum numbers.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

53. Which of the following is a correct set of quantum numbers for an electron in a 3d orbital?

A. n = 3, l = 0, ml = –1

B. n = 3, l = 1, ml = +3

C. n = 3, l = 2, ml = 3

D. n = 3, l = 3, ml = +2

E. n = 3, l = 2, ml = –2

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Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

54. Which of the following is a correct set of quantum numbers for an electron in a 5f orbital?

A. n = 5, l = 3, m_l = +1

B. n = 5, l = 2, m_l = +3

C. n = 4, l = 3, m_l = 0

D. n = 4, l = 2, m_l = +1

E. n = 5, l = 4, m_l = 3

Accessibility: Keyboard Navigation

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

55. In the quantum mechanical treatment of the hydrogen atom, which one of the following combinations of quantum numbers is not allowed?

A. A

B. B

C. C

D. D

E. E

Bloom's: 3. Apply

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

56. Which one of the following sets of quantum numbers can correctly represent a 3p orbital?

A. n = 3 l = 1 m_l = 2

B. n = 1 l = 3 m_l = 3

C. n = 3 l = 2 m_l = 1

D. n = 3 l = 1 m_l = –1

E. n = 3 l = 0 m_l = 1

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

57. As the frequency of electromagnetic radiation increases, its wavelength also increases.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Electromagnetic Radiation (Wave Properties)

Topic: Quantum Theory and Atomic Structure

58. The energy of a photon is directly proportional to the wavelength of the radiation.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

59. Line spectra are characteristic of atoms in the gas phase.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

60. Continuous spectra are characteristic of heated solids.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect

Topic: Quantum Theory and Atomic Structure

61. Continuous spectra are characteristic of molecules in the gas phase.

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

62. In the Rydberg equation, for a fixed value of n1, the longest wavelength line has n2 = .

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

63. The Rydberg equation is an example of an empirical equation.

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Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

64. The Rydberg equation, giving the wavelengths of lines in the spectrum of the hydrogen atom, was obtained by assuming that energy is quantized.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

65. In the Bohr model of the hydrogen atom, the electron moves in a circular path which Bohr referred to as an orbital.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Atomic Spectra (Bohr Model of the Atom)

Topic: Quantum Theory and Atomic Structure

66. Other factors being constant, a heavy object will have a longer de Broglie wavelength than a light object.

Accessibility: Keyboard Navigation

Bloom's: 2. Understand

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

67. A wave function for an electron is called an atomic orbital.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

68. In the quantum mechanical treatment of the hydrogen atom, the probability of finding an electron at any point is proportional to the wave function .

Bloom's: 1. Remember

Difficulty: Medium

Gradable: automatic

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle)

Topic: Quantum Theory and Atomic Structure

69. In the quantum mechanical treatment of the hydrogen atom, the energy depends on the principal quantum number n but not on the values of l or ml.

Accessibility: Keyboard Navigation

Bloom's: 1. Remember

Difficulty: Easy

Gradable: automatic

Subtopic: Quantum Numbers

Topic: Quantum Theory and Atomic Structure

Category # of Questions

Accessibility: Keyboard Navigation 60

Bloom's: 1. Remember 33

Bloom's: 2. Understand 10

Bloom's: 3. Apply 26

Difficulty: Easy 24

Difficulty: Hard 4

Difficulty: Medium 41

Gradable: automatic 69

Subtopic: Atomic Spectra (Bohr Model of the Atom) 20

Subtopic: Electromagnetic Radiation (Wave Properties) 14

Subtopic: Plank's Quantum Theory and Einstein's Photoelectric Effect 13

Subtopic: Quantum Mechanics (Wave-Particle Duality and the Heisenberg Uncertainty Principle) 11

Subtopic: Quantum Numbers 10

Subtopic: Structure of the Atom 1

Topic: Components of Matter 1

Topic: Quantum Theory and Atomic Structure 68