Deck 6: Electronic Structure of Atoms

Question 1

All of the orbitals in a given electron shell have the same value as the ________ quantum number.

A)principal
B)angular momentum
C)magnetic
D)spin
E)psi

Answer 1

principal

Question 2

Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

A)4f
B)4d
C)4p
D)4s
E)none of the above

Answer 2

none of the above

Question 3

All of the orbitals in a given subshell have the same value as the ________ quantum number.

A)principal
B)angular momentum
C)magnetic
D)A and B
E)B and C

Answer 3

A and B

Question 4

Which one of the following is correct?

A)ν + λ = c
B)ν ÷ λ = c
C)ν = cλ
D)λ = c ν
E)νλ = c

Question 5

Of the following transitions in the Bohr hydrogen atom, the ________ transition results in the emission of the lowest-energy photon.

A)n = 1 → n = 6
B)n = 6 → n = 1
C)n = 6 → n = 3
D)n = 3 → n = 6
E)n = 1 → n = 4

Question 6

Which one of the following is an incorrect orbital notation?

A)2s
B)3p_y
C)3f
D)4d_xy
E)4s

Question 7

Which one of the following is considered to be ionizing radiation?

A)visible light
B)radio waves
C)X-rays
D)microwaves
E)infrared radiation

Question 8

Which one of the following is not a valid value for the magnetic quantum number of an electron in a 5d subshell?

A)2
B)3
C)0
D)1
E)-1

Question 9

An electron cannot have the quantum numbers n = ________, l = ________, m_l = ________.

A)6, 1, 0
B)3, 2, 3
C)3, 2, -2
D)1, 0, 0
E)3, 2, 1

Question 10

An electron cannot have the quantum numbers n = ________, l = ________, m_l = ________.

A)2, 0, 0
B)2, 1, -1
C)3, 1, -1
D)1, 1, 1
E)3, 2, 1

Question 11

Which one of the following is an incorrect subshell notation?

A)4f
B)2d
C)3s
D)2p
E)3d

Question 12

The uncertainty principle states that ________.

A)matter and energy are really the same thing
B)it is impossible to know anything with certainty
C)it is impossible to know the exact position and momentum of an electron
D)there can only be one uncertain digit in a reported number
E)it is impossible to know how many electrons there are in an atom

Question 13

Which quantum number determines the energy of an electron in a hydrogen atom?

A)n
B)E
C)m_l
D)l
E)n and l

Question 14

Which of the subshells below do not exist due to the constraints upon the angular momentum quantum number?

A)2d
B)2s
C)2p
D)all of the above
E)none of the above

Question 15

According to the Heisenberg Uncertainty Principle, it is impossible to know precisely both the position and the ________ of an electron.

A)mass
B)color
C)momentum
D)shape
E)charge

Question 16

Which one of the quantum numbers does not result from the solution of the Schrodinger equation?

A)principal
B)azimuthal
C)magnetic
D)spin
E)angular momentum

Question 17

The de Broglie wavelength of a ________ will have the shortest wavelength when traveling at 30 cm/s.

A)marble
B)car
C)planet
D)uranium atom
E)hydrogen atom

Question 18

In the Bohr model of the atom, ________.

A)electrons travel in circular paths called orbitals
B)electrons can have any energy
C)electron energies are quantized
D)electron paths are controlled by probability
E)both A and C

Question 19

Of the following, ________ radiation has the shortest wavelength.

A)X-ray
B)radio
C)microwave
D)ultraviolet
E)infrared

Question 20

The photoelectric effect is ________.

A)the total reflection of light by metals giving them their typical luster
B)the production of current by silicon solar cells when exposed to sunlight
C)the ejection of electrons by a metal when struck with light of sufficient energy
D)the darkening of photographic film when exposed to an electric field
E)a relativistic effect

Question 21

Which electron configuration denotes an atom in its ground state?

A)
B)
C)
D)
E)

Question 22

Which electron configuration represents a violation of the Pauli exclusion principle?

A)
B)
C)
D)
E)

Question 23

The ground-state electron configuration of the element ________ is [Kr]5s¹4d⁵.

A)Nb
B)Mo
C)Cr
D)Mn
E)Tc

Question 24

Which of the following is a valid set of four quantum numbers? (n, l, m_l, m_s)

A)2, 1, 0, +1/2
B)2, 2, 1, -1/2
C)1, 0, 1, +1/2
D)2, 1, +2, +1/2
E)1, 1, 0, -1/2

Question 25

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

A)
B)
C)
D)
E)

Question 26

In a p_x orbital, the subscript x denotes the ________.

A)energy of the electron
B)spin of the electrons
C)probability of the shell
D)size of the orbital
E)axis along which the orbital is aligned

Question 27

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a one-electron system (such as hydrogen)?

A)n, l, and m_l
B)n and l only
C)l and m_l
D)m_l only
E)n only

Question 28

Which of the following is not a valid set of four quantum numbers? (n, l, m_l, m_s)

A)2, 0, 0, +1/2
B)2, 1, 0, -1/2
C)3, 1, -1, -1/2
D)1, 0, 0, +1/2
E)1, 1, 0, +1/2

Question 29

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

A)
B)
C)
D)
E)

Question 30

Which one of the following is the correct electron configuration for a ground-state nitrogen atom?

A)
B)
C)
D)
E)None of the above is correct.

Question 31

Which electron configuration represents a violation of the Pauli exclusion principle?

A)
B)
C)
D)
E)

Question 32

The ground-state electron configuration of ________ is [Ar]4s¹3d⁵.

A)V
B)Mn
C)Fe
D)Cr
E)K

Question 33

The ground state electron configuration of Ga is ________.

A)1s²2s²3s²3p⁶4s²3d¹⁰4p¹
B)1s²2s²2p⁶3s²3p⁶4s²4d¹⁰4p¹
C)1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4p¹
D)1s²2s²2p⁶3s²3p⁶4s²3d¹⁰4d¹
E)[Ar]4s²3d¹¹

Question 34

Which one of the following configurations depicts an excited oxygen atom?

A)1s²2s²2p²
B)1s²2s²2p²3s²
C)1s²2s²2p¹
D)1s²2s²2p⁴
E)[He]2s²2p⁴

Question 35

The ________ orbital is degenerate with 5p_y in a many-electron atom.

A)5s
B)5p_x
C)4p_y
D)5d_xy
E)5d²

Question 36

Which one of the following orbitals can hold two electrons?

A)2p_x
B)3s
C)4d_xy
D)all of the above
E)none of the above

Question 37

Which electron configuration represents a violation of Hund's rule for an atom in its ground state?

A)
B)
C)
D)
E)

Question 38

Which electron configuration represents a violation of the Pauli exclusion principle?

A)
B)
C)
D)
E)

Question 39

Which quantum numbers must be the same for the orbitals that they designate to be degenerate in a many-electron system?

A)n, l, and m_l
B)n only
C)n, l, m_l, and m_s
D)m_s only
E)n and l only

Question 40

Which one of the following configurations depicts an excited carbon atom?

A)1s²2s²2p¹3s¹
B)1s²2s²2p³
C)1s²2s²2p¹
D)1s²2s²3s¹
E)1s²2s²2p²

Question 41

The lowest orbital energy is reached when the number of electrons with the same spin is maximized. This statement describes ________.

A)Pauli Exclusion Principle
B)Planck's constant
C)deBroglie hypothesis
D)Heisenberg Uncertainty Principle
E)Hund's rule

Question 42

The ground-state configuration of fluorine is ________.

A)[He]2s²2p²
B)[He]2s²2p³
C)[He]2s²2p⁴
D)[He]22s²2p⁵
E)[He]2s²2p⁶

Question 43

Ham radio operators often broadcast on the 6-meter band. The frequency of this electromagnetic radiation is ________ MHz.

A)500
B)200
C)50
D)20
E)2.0

Question 44

The ground-state configuration of tungsten is ________.

A)[Ar]4s²3d³
B)[Xe]6s²4f¹⁴5d⁴
C)[Ne]3s¹
D)[Xe]6s²4f⁷
E)[Kr]5s²4d¹⁰5p⁵

Question 45

What is the frequency of light (s^-1)that has a wavelength of 3.12 × 10^-3 cm?

A)3.69 s^-1
B)2.44 × 10¹⁶ s^-1
C)9.62 × 10¹² s^-1
D)4.10 × 10^-17 s^-1
E)1.04 × 10^-13 s^-1

Question 46

What is the frequency of light (s^-1)that has a wavelength of 1.23 × 10^-6 cm?

A)3.69
B)2.44 × 10¹⁶ s^-1
C)4.10 × 10^-17 s^-1
D)9.62 × 10¹² s^-1
E)1.04 × 10^-13 s^-1

Question 47

How many different principal quantum numbers can be found in the ground-state electron configuration of nickel?

A)2
B)3
C)4
D)5
E)6

Question 48

The wavelength of light that has a frequency of 1.66 × 10⁹ s^-1 is ________ m.

A)0.181
B)5.53
C)2.00 × 10^-9
D)5.53 × 10⁸
E)none of the above

Question 49

The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X?

A)main group element
B)chalcogen
C)halogen
D)transition metal
E)alkali metal

Question 50

What is the frequency (s^-1)of electromagnetic radiation that has a wavelength of 2.3 m?

A)1.3 × 10⁸ s^-1
B)1.8 × 10^-9 s^-1
C)1.6 × 10⁸ s^-1
D)1.3 × 10^-33 s^-1
E)1.3 × 10³³ s^-1

Question 51

Electromagnetic radiation travels through vacuum at a speed of ________ m/s.

A)186,000
B)125
C)3.00 × 10⁸
D)10,000
E)It depends on wavelength.

Question 52

Which of the following elements has a ground-state electron configuration different from the predicted one?

A)Cu
B)Ca
C)Xe
D)Cl
E)Ti

Question 53

The wavelength of light that has a frequency of 1.20 × 10¹³ s^-1 is ________ m.

A)25.0
B)2.50 × 10^-5
C)0.0400
D)12.0
E)2.5

Question 54

Which two elements have the same ground-state electron configuration?

A)Pd and Pt
B)Cu and Ag
C)Fe and Cu
D)Cl and Ar
E)No two elements have the same ground-state electron configuration.

Question 55

What is the frequency of light (s^-1)that has a wavelength of 3.86 × 10^-5 cm?

A)7.77 × 10¹⁴ s^-1
B)6.32 × 10^-12 s^-1
C)1.04 × 10^-13 s^-1
D)9.62 × 10¹² s^-1
E)2.14 × 10^-16 s^-1

Question 56

What is the wavelength of light (nm)that has a frequency of 6.44 × 10¹³ s^-1?

A)4660 nm
B)6490 nm
C)4.66 × 10^-8 nm
D)6.49 × 10^-8 nm
E)932 nm

Question 57

What is the frequency (s^-1)of electromagnetic radiation that has a wavelength of 0.53 m?

A)5.7 × 10⁸ s^-1
B)1.8 × 10^-9 s^-1
C)1.6 × 10⁸ s^-1
D)1.3 × 10^-33 s^-1
E)1.3 × 10³³ s^-1

Question 58

The wavelength of a photon that has an energy of 6.33 × 10^-18 J is ________ m.

A)3.79 × 10^-7
B)3.10 × 10^-8
C)2.38 × 10²³
D)4.21 × 10^-24
E)9.55 × 10¹⁵

Question 59

What is the wavelength of light (nm)that has a frequency 4.62 × 10¹⁴ s^-1?

A)932 nm
B)649 nm
C)1.39 × 10²³ nm
D)1.54 × 10^-3 nm
E)1.07 × 10⁶ nm

Question 60

What is the wavelength of light (nm)that has a frequency of 3.22 × 10¹⁴ s^-1?

A)932 nm
B)649 nm
C)9.66 × 10²² nm
D)9.32 × 10^-7 nm
E)1.07 × 10⁶ nm

Question 61

Of the following, ________ radiation has the longest wavelength and ________ radiation has the greatest energy. gamma ultraviolet visible

A)ultraviolet, gamma
B)visible, ultraviolet
C)gamma, gamma
D)visible, gamma
E)gamma, visible

Question 62

The energy of a photon that has a wavelength of 8.33 × 10^-6 m is ________ J.

A)2.20 × 10^-26
B)3.60 × 10¹³
C)2.39 × 10^-20
D)2.7 × 10⁹
E)4.5 × 10^-25

Question 63

The energy of a photon that has a wavelength of 9.0 m is ________ J.

A)2.2 × 10^-26
B)4.5 × 10²⁵
C)6.0 × 10^-23
D)2.7 × 10⁹
E)4.5 × 10^-25

Question 64

A mole of yellow photons of wavelength 527 nm has ________ kJ of energy.

A)165
B)227
C)4.56 × 10^-46
D)6.05 × 10^-3
E)2.74 × 10^-19

Question 65

A mole of red photons of wavelength 725 nm has ________ kJ of energy.

A)2.74 × 10^-19
B)4.56 × 10^-46
C)6.05 × 10^-3
D)165
E)227

Question 66

The energy of a photon that has a frequency of 1.821 × 10¹⁶ s^-1 is ________ J.

A)5.44 × 10^-18
B)1.99 × 10^-25
C)3.49 × 10^-48
D)1.21 × 10^-17
E)5.46 × 10^-24

Question 67

Of the following, ________ radiation has the shortest wavelength and ________ radiation has the greatest energy. gamma ultraviolet visible

A)gamma, visible
B)visible, gamma
C)visible, ultraviolet
D)ultraviolet, gamma
E)gamma, gamma

Question 68

What is the frequency (s^-1)of a photon that has an energy of 4.38 × 10^-18 J?

A)436 s^-1
B)6.61 × 10¹⁵ s^-1
C)1.45 × 10^-16 s^-1
D)2.30 ×10⁷ s^-1
E)1.31 × 10^-9 s^-1

Question 69

What color of visible light has the highest energy?

A)violet
B)blue
C)red
D)green
E)yellow

Question 70

The energy of a photon that has a frequency of 8.21 × 10¹⁵ s^-1 is ________ J.

A)8.08 × 10^-50
B)1.99 × 10^-25
C)5.44 × 10^-18
D)1.24 × 10⁴⁹
E)1.26 × 10^-19

Question 71

The frequency of a photon that has an energy of 8.5 × 10^-12 J is ________ s^-1.

A)1.3 × 10²²
B)1.8 × 10^-16
C)2.5 × 10^-15
D)5.4 × 10^-8
E)2.5 × 10¹⁵

Question 72

What color of visible light has the longest wavelength?

A)blue
B)violet
C)red
D)yellow
E)green

Question 73

The energy of a photon of light is ________ proportional to its frequency and ________ proportional to its wavelength.

A)directly, directly
B)inversely, inversely
C)inversely, directly
D)directly, inversely
E)indirectly, not

Question 74

The wavelength of a photon that has an energy of 5.25 × 10^-19 J is ________ m.

A)3.79 × 10^-7
B)2.64 × 10⁶
C)2.38 × 10²³
D)4.21 × 10^-24
E)3.79 × 10⁷

Question 75

Using Bohr's equation for the energy levels of the electron in the hydrogen atom, determine the energy (J)of an electron in the n = 4 level.

A)-1.36 × 10^-19
B)-5.45 × 10^-19
C)-7.34 × 10¹⁸
D)-1.84 × 10^-29
E)+1.84 × 10^-29

Question 76

The energy of a photon that has a wavelength of 12.3 nm is ________ J.

A)1.51 × 10^-17
B)4.42 × 10^-23
C)1.99 × 10^-25
D)2.72 × 10^-50
E)1.62 × 10^-17

Question 77

What is the wavelength (angstroms)of a photon that has an energy of 5.69 × 10^-17 J?

A)454 angstroms
B)34.9 angstroms
C)6.89 × 10¹⁵ angstroms
D)3.66 × 10⁹ angstroms
E)3.50 × 10^-9 angstroms

Question 78

The energy of a photon that has a wavelength of 13.2 nm is ________ J.

A)9.55 × 10^-25
B)1.62 × 10^-17
C)1.99 × 10^-25
D)4.42 × 10^-23
E)1.51 × 10^-17

Question 79

What is the wavelength (angstroms)of a photon that has an energy of 4.38 × 10^-18 J?

A)45.4 angstroms
B)2.30 × 10⁷ angstroms
C)6.89 × 10¹⁵ angstroms
D)1.45 × 10^-16 angstroms
E)1.31 × 10^-9 angstroms

Question 80

The frequency of a photon that has an energy of 3.7 × 10^-18 J is ________ s^-1.

A)5.6 × 10¹⁵
B)1.8 × 10^-16
C)2.5 × 10^-15
D)5.4 × 10^-8
E)2.5 × 10¹⁵