Deck 6: Electronic Structure of Atoms

Question 1

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

Answer 1

n = 6 → n = 3

Question 2

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

Answer 2

X-rays

Question 3

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

Answer 3

νλ = c

Question 4

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 5

Of the following,________ radiation has the shortest wavelength.

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

Question 6

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 7

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 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

Which one of the following is an incorrect subshell notation?

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

Question 10

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 11

All of the following are a result from the solution of the Schrodinger equation except ________.

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

Question 12

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 13

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

Question 14

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 15

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 16

Which one of the following is an incorrect orbital notation?

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

Question 17

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

A)principal
B)spin
C)magnetic
D)A and B
E)B and C

Question 18

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 19

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 20

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 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

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

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

Question 23

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 24

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

A)
B)
C)
D)
E)

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

Which is the correct electron configuration for a nitrogen atom?

A)1s²2s²2p²
B)1s²2s²2p¹
C)1s²2s²2p⁴
D)1s²2s²2p³
E)[He]2s²2p⁵

Question 27

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

A)
B)
C)
D)
E)

Question 28

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 29

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

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

Question 30

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 31

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 32

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 33

A 4p_z orbital in a many-electron atom is degenerate with ________.

A)5s
B)3p_z
C)4d_xy
D)4p_x
E)4d²

Question 34

Which electron orbital diagram represents a violation of the Aufbau principle?

A)
B)
C)
D)
E)

Question 35

Which electron configuration denotes an atom in its ground state?

A)
B)
C)
D)
E)

Question 36

The ground state electron configuration of Ga is ________.

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

Question 37

Which of the quantum number(s)below represent the principal quantum number?

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 38

Which electron orbital diagram is written correctly for an atom without any violations?

A)
B)
C)
D)
E)

Question 39

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

A)
B)
C)
D)
E)

Question 40

Which is the correct electron configuration for an oxide ion?

A)1s²2s²2p³
B)1s²2s²2p¹
C)1s²2s²2p⁶
D)1s²2s²3s²
E)1s²2s²2p²

Question 41

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 42

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 43

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 44

No two electrons within the same orbtial can have the same set of quantum numbers.This statement describes ________.

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

Question 45

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 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

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 48

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 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

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 51

Visible light with a wavelength of 550 nm has a frequency of ________ Hz.

A)5.5 × 10⁵
B)1.7 × 10¹¹
C)5.5 × 10¹⁴
D)1.7 × 10²
E)5.5 × 10¹⁷

Question 52

The ground-state configuration of tungsten is ________.

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

Question 53

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 54

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 55

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 56

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 57

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 58

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 59

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 60

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 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

Which of the following radiation sources from the electromagnetic spectrum has the shortest wavelength and greatest energy?

A)radio
B)microwave
C)gamma
D)visible
E)ultraviolet

Question 63

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 64

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 65

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 66

What is the energy of a photon (J)that has a wavelength of 105 nm?

A)1.89 × 10^-13
B)1.89 × 10^-32
C)1.89 × 10^-18
D)1.89 × 10^-36
E)1.89 × 10^-27

Question 67

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 68

A photon that has an energy of 8.63 × 10^-12 J would emit light at which wavelength (m)?

A)230
B)2.30 × 10^-14
C)2.30
D)3.48 × 10¹⁹
E)2.30 × 10^-5

Question 69

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 70

What is the energy of a photon (J)that has a frequency of 4.39 × 10¹⁹ Hz?

A)2.91 × 10^-14
B)2.91 × 10²⁰
C)6.83 × 10^-12
D)2.91 × 10^-52
E)2.91 × 10⁵⁴

Question 71

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 72

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 73

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 74

Using Bohr's equation for the energy levels of the electron in the hydrogen atom,determine the 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 75

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 76

What color of visible light has the longest wavelength?

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

Question 77

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 78

What color of visible light has the highest energy?

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

Question 79

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 80

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