Question 1

When l = 1 then ml can be ________.

Accepted Answer

Question 2

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) None of the above

Question 3

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

Accepted Answer

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) B) and D)
G) A) and D)

Question 5

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) A) and B)
F) A) and C)

Question 6

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) C) and D)
G) B) and D)

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

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) A) and D)
G) None of the above

Question 9

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) D) and E)
G) C) and D)

Question 10

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) C) and D)
G) A) and C)

Question 11

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) B) and D)
G) D) and E)

Question 12

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) A) and D)
G) B) and E)

Question 13

"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) D) and E)
G) C) and E)

Question 14

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) B) and E)
G) A) and E)

Question 15

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) None of the above
G) All of the above

Question 16

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 B)
G) All of the above

Question 17

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

Accepted Answer

A) True 
 B)False

Question 18

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) A) and B)
G) D) and E)

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) None of the above
G) D) and E)

Question 20

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) A) and E)
G) A) and B)

Exam 6: Quantum Theory and the Electronic Structure of Atoms

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Emission spectra

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which is the correct electron configuration for gold?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The electron configuration of a ground-state copper atom is

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The unusual electron configuration of Mo indicates the

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

The orientation in space of an atomic orbital is associated with

Correct AnswerverifiedShow Answer

When l = 1 then ml can be ________.

Correct AnswerverifiedShow Answer

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

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

Correct Answer
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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)

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

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When l = 1 then m_l can be ________.

Correct Answer
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