Deck 6: Electronic Structure of Atoms

Question 1

The wavelength of light emitted from a traffic light having a frequency of 5.75 × 10¹⁴ Hz is __________.

A)702 nm
B)641 nm
C)674 nm
D)522 nm
E)583 nm

Answer 1

522 nm

Question 2

The de Broglie wavelength of a 6.0 gram bullet traveling at the speed of sound is __________. The speed of sound is 331 m/sec.

A)2.7 × 10^-34 m
B)3.3 × 10^-34 m
C)3.35 × 10^-33 m
D)2.7 × 10^-37 m
E)6.6 × 10^-31 m

Answer 2

3.3 × 10^-34 m

Question 3

Which one of the following is an incorrect subshell notation?

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

Answer 3

2d

Question 4

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

Question 5

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 6

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 7

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

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

Question 8

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 9

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 10

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 11

Of the following, __________ radiation has the shortest wavelength.

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

Question 12

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 13

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

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

Question 14

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 15

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 16

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 17

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 18

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 19

Of the following transitions in the Bohr hydrogen atom, the __________ transition results in the emission of the highest-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 20

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 21

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 22

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 23

Which one of the following represents an acceptable possible set of quantum numbers (in the order n, l, m_l, m_s)for an electron in an atom?

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

Question 24

Which one of the following is an incorrect orbital notation?

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

Question 25

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 26

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 27

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 28

At maximum, an f-subshell can hold __________ electrons, a d-subshell can hold __________ electrons, and a p-subshell can hold __________ electrons.

A)14, 10, 6
B)2, 8, 18
C)14, 8, 2
D)2, 12, 21
E)2, 6, 10

Question 29

If an electron has a principal quantum number (n)of 3 and an angular momentum quantum number (l)of 2, the subshell designation is __________.

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

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

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

A)
B)
C)
D)
E)

Question 33

Which one of the following represents an acceptable set of quantum numbers for an electron in an atom? (arranged as n, l, m_l, and m_s)

A)2, 2, -1, -1/2
B)1, 0, 0, 1/2
C)3, 3, 3, 1/2
D)5, 4,- 5, 1/2
E)3, 3, 3, -1/2

Question 34

Which electron configuration denotes an atom in its ground state?

A)
B)
C)
D)
E)

Question 35

Which one of the following represents an impossible set of quantum numbers for an electron in an atom? (arranged as n, l, m_l, and m_s)

A)2, 1, -1, -1/2
B)1, 0, 0, 1/2
C)3, 3, 3, 1/2
D)5, 4, - 3, 1/2
E)5, 4, -3, -1/2

Question 36

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 37

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 38

In a p_x orbital, the subscript x denotes the __________ of the electron.

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

Question 39

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 40

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

A)
B)
C)
D)
E)

Question 41

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

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

Question 42

The ground state electron configuration of Fe is __________.

A)1s²2s²3s²3p⁶3d⁶
B)1s²2s²2p⁶3s²3p⁶4s²3d⁶
C)1s²2s²2p⁶3s²3p⁶4s²
D)1a²2s²2p⁶3s²3p⁶4s²4d⁶
E)1s²2s²3s²3p¹⁰

Question 43

The element that has a valence configuration of 4s¹ is __________.

A)Li
B)Na
C)K
D)Rb
E)Cs

Question 44

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 45

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 46

The ground state configuration of tungsten is __________.

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

Question 47

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

A)
B)
C)
D)
E)

Question 48

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 49

The ground state configuration of fluorine is __________.

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

Question 50

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 51

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

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

Question 52

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

A)
B)
C)
D)
E)

Question 53

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

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

Question 54

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

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

Question 55

The ground state electron configuration of Ga is __________.

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

Question 56

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

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

Question 57

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 58

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

A)
B)
C)
D)
E)

Question 59

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

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

Question 60

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 61

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 62

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 63

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

Question 64

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

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

Question 65

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

Question 66

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 67

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 68

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

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

Question 69

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

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

Question 70

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 ×
E)1.51 × 10^-17

Question 71

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 72

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

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

Question 73

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

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

Question 74

The energy of a photon that has a wavelength of 8.33 x 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 75

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 76

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

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

Question 77

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 78

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

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

Question 79

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
C)4.10 × 10^-17
D)9.62 × 10¹²
E)1.04 × 10^-13

Question 80

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