Question 1

The electron configuration of a ground-state copper atom is

Accepted Answer

A)   [Ar]4s24d4.
B)   [Ar]4s24p63d3.
C)   [Ar]4s23d9.
D)   [Ar]3d9.
E)   [Ar]4s13d10.F) None of the above
G) B) and E)

Question 2

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

Accepted Answer

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 raysF) None of the above
G) C) and E)

Question 3

Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

Accepted Answer

A)   Max Planck
B)   Louis de Broglie
C)   Clinton Davisson
D)   Sir Isaac Newton
E)   Lothan MeyerF) A) and C)
G) A) and E)

Question 4

The orientation in space of an atomic orbital is associated with

Accepted Answer

A)   the principal quantum number (n) .
B)   the angular momentum quantum number (l) .
C)   the magnetic quantum number (ml) .
D)   the spin quantum number (ms) .
E)   none of these choices is correct.F) A) and B)
G) C) and E)

Question 5

________ is the element represented by the electron configuration [Ne]3s2 3p1.

Accepted Answer

Question 6

"No two electrons in an atom can have the same four quantum numbers" is a statement of

Accepted Answer

A)   the Pauli exclusion principle.
B)   Bohr's equation.
C)   Hund's rule.
D)   de Broglie's relation.
E)   Dalton's atomic theory.F) A) and E)
G) B) and C)

Question 7

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

Accepted Answer

A)   A
B)   B
C)   C
D)   D
E)   EF) D) and E)
G) None of the above

Question 8

Which element has the following ground-state electron configuration? [Kr]5s24d105p3

Accepted Answer

A)   Sn
B)   Sb
C)   Pb
D)   Bi
E)   TeF) A) and D)
G) B) and E)

Question 9

Which is the correct electron configuration for gold?

Accepted Answer

A)   [Xe]4f145d96s2
B)   [Xe]4f145d106s1
C)   [Xe]4f135d106s2
D)   [Xe]4f145d105s1
E)   None of the electron configurations is correct.F) B) and E)
G) C) and E)

Question 10

List the following types of radiation from lowest frequency to highest frequency: microwave, X ray, ultraviolet, visible, and infrared

Accepted Answer

A)   microwave 
B)   X ray 
C)   visible 
D)   infrared 
E)   infrared < visible < microwave < ultraviolet < X rayF) D) and E)
G) A) and D)

Question 11

How many electrons are there in the 2nd principal energy level (n = 2)  of a phosphorus atom?

Accepted Answer

A)   3
B)   5
C)   6
D)   8
E)   10F) C) and E)
G) A) and B)

Question 12

The electron configuration for chlorine is [Ne]3s2 3p5.

Accepted Answer

A) True 
 B)False

Question 13

When l = 1 then ml can be ________.

Accepted Answer

Question 14

Emission spectra

Accepted Answer

A)   cannot be used to identify an unknown atom.
B)   can be used to identify unknown atoms.
C)   can be explained by the movement of protons colliding with electrons.
D)   None of these choices.E) A) and B)
F) A) and C)

Question 15

What is the correct electron configuration for a germanium (Ge)  atom?

Accepted Answer

A)   1s22s22p63s23p64s24p2
B)   1s22s22p63s23p64s23d104p2
C)   1s22s22p63s23p2
D)   1s22s23s23p5
E)   None of the answers is correct.F) None of the above
G) C) and D)

Question 16

For all atoms of the same element, the 2s orbital is larger than the 1s orbital.

Accepted Answer

A) True 
 B)False

Question 17

The Pauli exclusion principle states that no ________ electrons within an atom can have the same ________ quantum numbers.

Accepted Answer

A)   4; 6
B)   2; 4
C)   3; 6
D)   6; 10
E)   3; 8F) All of the above
G) B) and C)

Question 18

The unusual electron configuration of Mo indicates the

Accepted Answer

A)   unusual stability of half-filled d-orbitals.
B)   unpredictability of the electron filling patterns of the non-representative elements.
C)   unusually large size of Mo atoms.
D)   greater than expected electronegativity of Mo.E) All of the above
F) A) and B)

Question 19

The FM station KDUL broadcasts music at 99.1 MHz. Find the wavelength of these waves. (c = 3.00 × 108 m/s)

Accepted Answer

A)   1.88 × 10-2 m
B)   0.330 m
C)   3.03 m
D)   5.33 × 102 m
E)   > 103 mF) A) and C)
G) A) and B)

Question 20

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

Accepted Answer

A)   n = 5, l = 3, ml = +1
B)   n = 5, l = 2, ml = +3
C)   n = 4, l = 3, ml = 0
D)   n = 4, l = 2, ml = +1
E)   n = 5, l = 4, ml = 3.F) None of the above
G) A) and E)

Exam 6: Quantum Theory and the Electronic Structure of Atoms

The electron configuration of a ground-state copper atom is

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Which element has the following ground-state electron configuration? [Kr]5s24d105p3

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When l = 1 then ml can be ________.

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List the following types of radiation from lowest frequency to highest frequency: microwave, X ray, ultraviolet, visible, and infrared

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For all atoms of the same element, the 2s orbital is larger than the 1s orbital.

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"No two electrons in an atom can have the same four quantum numbers" is a statement of

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

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Which is the correct electron configuration for gold?

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________ is the element represented by the electron configuration [Ne]3s2 3p1.

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Which scientist proposed that energy of radiation is composed of extremely small indivisible packages called quanta? ("Quanta" is the plural of "quantum.")

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The Pauli exclusion principle states that no ________ electrons within an atom can have the same ________ quantum numbers.

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The orientation in space of an atomic orbital is associated with

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What is the correct electron configuration for a germanium (Ge) atom?

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

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How many electrons are there in the 2nd principal energy level (n = 2) of a phosphorus atom?

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The unusual electron configuration of Mo indicates the

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The FM station KDUL broadcasts music at 99.1 MHz. Find the wavelength of these waves. (c = 3.00 × 108 m/s)

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

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The electron configuration for chlorine is [Ne]3s2 3p5.

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Emission spectra

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Which element has the following ground-state electron configuration? [Kr]5s²4d¹⁰5p³

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When l = 1 then m_l can be ________.

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________ is the element represented by the electron configuration [Ne]3s² 3p¹.

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The Pauli exclusion principle states that no electrons within an atom can have the same quantum numbers.

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How many electrons are there in the 2^nd principal energy level (n = 2) of a phosphorus atom?

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The FM station KDUL broadcasts music at 99.1 MHz. Find the wavelength of these waves. (c = 3.00 × 10⁸m/s)

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The electron configuration for chlorine is [Ne]3s² 3p⁵.

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