Question 1

Light can be made to have a higher intensity by raising its

Accepted Answer

A)  amplitude.
B)  energy.
C)  frequency.
D)  wavelength.

Question 2

What is the ground-state electron configuration of tellurium?

Accepted Answer

A)  [Kr]4d105s25p4
B)  [Kr]5s25p65d8
C)  [Kr]5s25p4
D)  [Kr]4f144d105s25p4

Question 3

Of the following,which atom has the smallest atomic radius?

Accepted Answer

A)  Ca
B)  As
C)  Mn
D)  Ni

Question 4

An element in a ground state electron configuration has 4 electrons in the 4p orbitals.Which of the following statements can not describe the electron configurations in this atom?

Accepted Answer

A)  At least one electron has an orbital angular momentum (l) of 2.
B)  Six electrons are in the n=4 shell.
C)  The valence electron configuration is identical to carbon.
D)  No electrons have an orbital angular momentum (l) of 3.3.

Question 5

Which of the following is true?

Accepted Answer

A)  The Bohr atom is the model currently accepted for electrons in atoms.
B)  Electrons travel around the nucleus in circular orbits.
C)  There is a 5% chance of finding an electron in an atom outside its orbital.
D)  The square of the wave function gives the probability of finding the electron.

Question 6

Which of the following is not quantized?

Accepted Answer

A)  the charge on a monatomic ion
B)  the distance between two objects
C)  the population of the United States
D)  the static charge on a balloon rubbed with wool

Question 7

Arrange the following spectral regions in order of increasing energy: infrared,microwave,ultraviolet,visible.

Accepted Answer

A)  microwave 
B)  microwave 
C)  ultraviolet 
D)  ultraviolet < visible < infrared < microwave

Question 8

Photochemists use electromagnetic radiation to initiate chemical reactions,often by providing the energy required to break bonds within a molecule.Lowering which of the following will result in electromagnetic radiation having more energy per photon?

Accepted Answer

A)  amplitude
B)  frequency
C)  intensity
D)  wavelength

Question 9

How many orbitals are there in the sixth shell?

Accepted Answer

A)  5
B)  6
C)  15
D)  36

Question 10

The absorption of light of frequency 1.16 × 1011 Hz is required for CO molecules to go from the lowest rotational energy level to the next highest rotational energy level.Determine the energy for this transition in kJ/mol.(h = 6.626 × 10-34 J ∙ s)

Accepted Answer

A)  7.69 × 10-23 kJ/mol
B)  0.0463 kJ/mol
C)  46.3 kJ/mol
D)  949 kJ/mol

Question 11

The smallest number that can be used for m or n in the Balmer-Rydberg equation is ________ and the largest number is ________.

Accepted Answer

The answer of The smallest number that can be used...

Question 12

Which of the following is true? The probability density

Accepted Answer

A)  for all s orbitals is independent of direction from the nucleus.
B)  for all s orbitals is independent of distance from the nucleus.
C)  is independent of direction from the nucleus for 1s orbitals only.
D)  is independent of distance from the nucleus for 1s orbitals only.

Question 13

What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table? 2 B) ns2np2 C) ns2(n-1) d2 D) ns2(n-2) f2" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  ns2
B)  ns2np2
C)  ns2(n-1) d2
D)  ns2(n-2) f2

Question 14

A solution to the Schrödinger wave equation is a ________,or orbital,represented by the symbol Ψ,and the probability of finding an electron defined by Ψ within a given volume of space around the nucleus is ________.

Accepted Answer

The answer of A solution to the Schrödinger wave equation...

Question 15

Which of the following is not a valid set of quantum numbers?

Accepted Answer

A)  n = 2,l = 1,ml = 0,and ms = +1/2
B)  n = 2,l = 1,ml = -1,and ms = +1/2
C)  n = 3,l = 0,ml = 0,and ms = +1/2
D)  n = 3,l = 2,ml = 3,and ms = +1/2

Question 16

Two electromagnetic waves are represented below. 
-Wave (a) has the

Accepted Answer

A)  longer wavelength and higher frequency than wave (b) .
B)  longer wavelength and lower frequency than wave (b) .
C)  shorter wavelength and higher frequency than wave (b) .
D)  shorter wavelength and lower frequency than wave (b) .

Question 17

The spheres below represent atoms of Li,Be,B,and F (not necessarily in that order) . 
-Which one of these spheres represents an atom of F?

Accepted Answer

A)  sphere (a) 
B)  sphere (b) 
C)  sphere (c) 
D)  sphere (d)

Question 18

An orbital that as the appearance of a three-dimensional clover leaf has a quantum number l = ________.

Accepted Answer

The answer of An orbital that as the appearance of...

Question 19

The spheres below represent atoms of Sb,As,P,and N (not necessarily in that order) . 
-Which one of these spheres represents an atom of As?

Accepted Answer

A)  sphere (a) 
B)  sphere (b) 
C)  sphere (c) 
D)  sphere (d)

Question 20

How many valence electrons does a neutral polonium atom have?

Accepted Answer

A)  2
B)  4
C)  6
D)  84

Exam 5: Periodicity and the Electronic Structure of Atoms

Of the following,which atom has the smallest atomic radius?

Correct AnswerverifiedShow Answer

The smallest number that can be used for m or n in the Balmer-Rydberg equation is ________ and the largest number is ________.

Correct AnswerverifiedShow Answer

Which of the following is true?

Correct AnswerverifiedShow Answer

What is the ground-state electron configuration of tellurium?

Correct AnswerverifiedShow Answer

What is the ground-state valence-shell electron configuration of the group of elements indicated by the shaded portion of the periodic table?

Correct AnswerverifiedShow Answer

The absorption of light of frequency 1.16 × 1011 Hz is required for CO molecules to go from the lowest rotational energy level to the next highest rotational energy level.Determine the energy for this transition in kJ/mol.(h = 6.626 × 10-34 J ∙ s)

Correct AnswerverifiedShow Answer

Which of the following is not quantized?

Correct AnswerverifiedShow Answer

How many orbitals are there in the sixth shell?

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Which of the following is not a valid set of quantum numbers?

Correct AnswerverifiedShow Answer

Two electromagnetic waves are represented below. -Wave (a) has the

Correct AnswerverifiedShow Answer

Light can be made to have a higher intensity by raising its

Correct AnswerverifiedShow Answer

A solution to the Schrödinger wave equation is a ________,or orbital,represented by the symbol Ψ,and the probability of finding an electron defined by Ψ within a given volume of space around the nucleus is ________.

Correct AnswerverifiedShow Answer

Which of the following is true? The probability density

Correct AnswerverifiedShow Answer

Photochemists use electromagnetic radiation to initiate chemical reactions,often by providing the energy required to break bonds within a molecule.Lowering which of the following will result in electromagnetic radiation having more energy per photon?

Correct AnswerverifiedShow Answer

Arrange the following spectral regions in order of increasing energy: infrared,microwave,ultraviolet,visible.

Correct AnswerverifiedShow Answer

The spheres below represent atoms of Sb,As,P,and N (not necessarily in that order) . -Which one of these spheres represents an atom of As?

Correct AnswerverifiedShow Answer

The spheres below represent atoms of Li,Be,B,and F (not necessarily in that order) . -Which one of these spheres represents an atom of F?

Correct AnswerverifiedShow Answer

An orbital that as the appearance of a three-dimensional clover leaf has a quantum number l = ________.

Correct AnswerverifiedShow Answer

How many valence electrons does a neutral polonium atom have?

Correct AnswerverifiedShow Answer

An element in a ground state electron configuration has 4 electrons in the 4p orbitals.Which of the following statements can not describe the electron configurations in this atom?

Correct AnswerverifiedShow Answer

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The smallest number that can be used for m or n in the Balmer-Rydberg equation is and the largest number is .

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The absorption of light of frequency 1.16 × 10¹¹ Hz is required for CO molecules to go from the lowest rotational energy level to the next highest rotational energy level.Determine the energy for this transition in kJ/mol.(h = 6.626 × 10^-34 J ∙ s)

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A solution to the Schrödinger wave equation is a ,or orbital,represented by the symbol Ψ,and the probability of finding an electron defined by Ψ within a given volume of space around the nucleus is .

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