Test Bank for Chemical Principles: The Quest for Insight 8e 8th Edition by Peter Atkins; Loretta Jones; Leroy Laverman; Kelley Young; James Patterson. Full Chapters are included (Focus 1 to Focus 10 are included)
Focus 1: Atoms
1A Investigating atoms
1B Quantum theory
1C Wavefunctions and ene...
Indicate the answer choice that best completes the statement or answers the question.
1. Which of the following has the largest effective nuclear charge?
a. F
b. Na
c. Li
d. He
e. N
2. In a one-dimensional particle in a box, for Ψ4, how many nodes are predicted?
a. 1
b. 3
c. 0
d. 2
e. 4
3. How many f electrons are in a gadolinium atom?
a. 7
b. 6
c. 5
d. 4
e. 3
4. Write the ground-state electron configuration of Pb2+.
a. [Xe]4f145d56s16p6
b. [Xe]4f145d106s2
c. [Xe]4f145d56s26p5
d. [Xe]4f145d106s16p1
e. [Xe]4f145d106p2
5. Which of the following experiments most directly supports de Broglie's hypothesis of the wave nature of
matter?
a. Black-body radiation
b. The photoelectric effect
c. α-particle scattering by a metal foil
d. Electron diffraction by a crystal
e. The emission spectrum of the hydrogen atom
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, Name: Class: Date:
Focus 01 8e
6. Which of the following is likely to form ions two units lower in charge than expected from the group number?
a. Hg
b. Cd
c. Sb
d. Ge
e. Zn
7. What is the frequency of radiation with a wavelength of 2.0 m?
a. 1.5 × 108 Hz
b. 3.0 × 108 Hz
c. 7.0 × 10-9 Hz
d. 7.0 × 108 Hz
e. 1.5 × 10-8 Hz
8. Which of the following statements is incorrect?
a. For a one-dimensional particle in a box, as the mass of the particle becomes larger the separation
between neighboring energy levels increases.
b. For a one-dimensional particle in a box, the separation between neighboring energy levels increases
as the length of the container increases.
c. For a one-dimensional particle in a box, the energy separation between neighboring energy levels has
the value h2/8mL2 when the walls of the box are infinitely far apart.
d. Argon atoms in a cylinder can be treated as though their translational energy were quantized.
e. A billiard ball on a table has a completely negligible zero-point energy.
9. Which of the following has the highest energy per photon?
a. Infrared
b. Blue light
c. Green light
d. Orange light
e. Red light
10. Of the following, which wavelength range is visible to the human eye?
a. 950 nm
b. 870 nm
c. 770 nm
d. 500 nm
e. 380 nm
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