Deck 3: The Quantum Mechanical Model of the Atom

Question 1

Which of the following occur as the energy of a photon increases?

A) The frequency decreases.
B) The speed increases.
C) The wavelength increases
D) The wavelength gets shorter.
E) None of the above occur as the energy of a photon increases.

Answer 1

The wavelength gets shorter.

Question 2

The number of cycles that pass through a stationary point is called

A) wavelength.
B) amplitude.
C) frequency.
D) area.
E) median.

Answer 2

frequency.

Question 3

When waves of equal amplitude from two sources are in phase when they interact,it is called

A) destructive interference.
B) diffraction.
C) constructive interference.
D) effusion.
E) amplitude.

Answer 3

constructive interference.

Question 4

Which of the following types of electromagnetic radiation has the lowest frequency?

A) yellow
B) blue
C) orange
D) green
E) purple

Question 5

Calculate the frequency of the green light emitted by a hydrogen atom with a wavelength of 486.1 nm.

A) 1.46 × 10¹⁴ s^-1
B) 6.86 × 10¹⁴ s^-1
C) 4.33 × 10¹⁴ s^-1
D) 6.17 × 10¹⁴ s^-1
E) 1.62 × 10¹⁴ s^-1

Question 6

On the electromagnetic spectrum,visible light is immediately between two other wavelengths.Name them.

A) infrared and x-ray
B) radio and microwave
C) gamma ray and ultraviolet
D) microwave and x-ray
E) infrared and ultraviolet

Question 7

Which of the following visible colors of light has the longest wavelength?

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

Question 8

When a wave encounters an obstacle or a slit that is comparable in size to its wavelength,it bends around it.This characteristic is called

A) destructive interference.
B) diffraction.
C) constructive interference.
D) effusion.
E) amplitude.

Question 9

Calculate the energy of the orange light emitted,per photon,by a neon sign with a frequency of 4.89 × 10¹⁴ Hz.

A) 3.09 × 10^-19 J
B) 6.14 × 10^-19 J
C) 3.24 × 10^-19 J
D) 1.63 × 10^-19 J
E) 5.11 × 10^-19 J

Question 10

________ are used to image bones and internal organs.

A) Ultraviolet light
B) Gamma rays
C) Microwaves
D) X-rays
E) Radio waves

Question 11

The distance between adjacent crests is called

A) wavelength.
B) amplitude.
C) frequency.
D) area.
E) median.

Question 12

A sunburn is caused by overexposure to ________ radiation.

A) ultraviolet
B) gamma
C) microwave
D) x-ray
E) radio

Question 13

When waves of equal amplitude from two sources are out of phase when they interact,it is called

A) destructive interference.
B) diffraction.
C) constructive interference.
D) effusion.
E) amplitude.

Question 14

Which of the following occur as the wavelength of a photon increases?

A) The frequency decreases.
B) The energy increases.
C) The speed decreases.
D) Planck's constant decreases.
E) None of the above occur as the wavelength of a photon increases.

Question 15

Calculate the energy of the green light emitted,per photon,by a mercury lamp with a frequency of 5.49 × 10¹⁴ Hz.

A) 2.75 × 10^-19 J
B) 3.64 × 10^-19 J
C) 5.46 × 10^-19 J
D) 1.83 × 10^-19 J
E) 4.68 × 10^-19 J

Question 16

The vertical height of a wave is called

A) wavelength.
B) amplitude.
C) frequency.
D) area.
E) median.

Question 17

Food can be cooked by ________ radiation.

A) ultraviolet
B) gamma
C) microwave
D) x-ray
E) radio

Question 18

Which of the following visible colors of light has the highest frequency?

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

Question 19

Which of the following colors of electromagnetic radiation has the shortest wavelength?

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

Question 20

Calculate the wavelength (in nm)of the blue light emitted by a mercury lamp with a frequency of 6.88 × 10¹⁴ Hz.

A) 229 nm
B) 436 nm
C) 206 nm
D) 485 nm
E) 675 nm

Question 21

Calculate the wavelength of an electron (m = 9.11 × 10^-28 g)moving at 3.66 × 10⁶ m/s.

A) 1.99 × 10^-10 m
B) 5.03 × 10^-10 m
C) 1.81 × 10^-10 m
D) 5.52 × 10^-9 m
E) 2.76 × 10^-9 m

Question 22

Identify the color of a flame test for potassium.

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

Question 23

What are the possible orbitals for n = 3?

A) s, p, d
B) s, p, d, f
C) s
D) s, p

Question 24

Determine the shortest frequency of light required to remove an electron from a sample of Ti metal,if the binding energy of titanium is 3.14 × 10³ kJ/mol.

A) 7.87 × 10¹⁵ Hz
B) 4.74 × 10¹⁵ Hz
C) 2.11 × 10¹⁵ Hz
D) 1.27 × 10¹⁵ Hz
E) 6.19 × 10¹⁵ Hz

Question 25

Which of the following statements is TRUE?

A) The emission spectrum of a particular element is always the same and can be used to identify the element.
B) Part of the Bohr model proposed that electrons in the hydrogen atom are located in "stationary states" or particular orbits around the nucleus.
C) The uncertainty principle states that we can never know both the exact location and speed of an electron.
D) An orbital is the volume in which we are most likely to find an electron.
E) All of the above are true.

Question 26

How many photons are contained in a flash of green light (525 nm)that contains 189 kJ of energy?

A) 5.67 × 10²³ photons
B) 2.01 × 10²⁴ photons
C) 1.25 × 10³¹ photons
D) 4.99 × 10²³ photons
E) 7.99 × 10³⁰ photons

Question 27

Calculate the energy of the red light emitted by a neon atom with a wavelength of 703.2 nm.

A) 3.54 × 10^-19 J
B) 4.27 × 10^-19 J
C) 2.34 × 10^-19 J
D) 6.45 × 10^-19 J
E) 2.83 × 10^-19 J

Question 28

What total energy (in kJ)is contained in 1.0 mol of photons,all with a frequency of 2.75 × 10¹⁴ Hz?

A) 182 kJ
B) 219 kJ
C) 457 kJ
D) 326 kJ
E) 110 kJ

Question 29

Calculate the wavelength of a baseball (m = 155 g)moving at 32.5 m/s.

A) 7.60 × 10^-36 m
B) 1.32 × 10^-34 m
C) 2.15 × 10^-32 m
D) 2.68 × 10^-34 m
E) 3.57 × 10^-32 m

Question 30

What value of l is represented by a d orbital?

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

Question 31

Determine the mass of a ball with a wavelength of 3.45 × 10^-34 m and a velocity of 6.55 m/s.

A) 0.293 g
B) 12.6 g
C) 293 g
D) 346 g
E) 3.41 g

Question 32

How many orbitals are contained in the third principal level (n = 3)of a given atom?

A) 9
B) 3
C) 18
D) 7
E) 5

Question 33

For n = 3,what are the possible sublevels?

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

Question 34

Calculate the energy of the violet light emitted by a hydrogen atom with a wavelength of 410.1 nm.

A) 4.85 × 10^-19 J
B) 2.06 × 10^-19 J
C) 1.23 × 10^-19 J
D) 8.13 × 10^-19 J
E) 5.27 × 10^-19 J

Question 35

Identify the color of a flame test for lithium.

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

Question 36

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal,if the binding energy for an electron in K is 1.76 × 10³ kJ/mol.

A) 147 nm
B) 68.0 nm
C) 113 nm
D) 885 nm
E) 387 nm

Question 37

What value of l is represented by an f orbital?

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

Question 38

Determine the velocity of a medicine ball (m = 10.0 kg)with a wavelength of 1.33 × 10^-35 m.

A) 8.81 m/s
B) 12.3 m/s
C) 2.21 m/s
D) 4.98 m/s
E) 6.44 m/s

Question 39

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy for an atom of hydrogen,making the assumption that ionization is the transition from

A) -2.18 × 10^-18 J
B) +2.18 × 10^-18 J
C) +4.59 × 10^-18 J
D) -4.59 × 10^-18 J
E) +4.36 × 10^-18 J

Question 40

Identify the color of a flame test for sodium.

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

Question 41

Determine the end (final)value of n in a hydrogen atom transition,if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10^-18 J.

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

Question 42

Which of the following statements is TRUE?

A) We can sometimes know the exact location and speed of an electron at the same time.
B) All orbitals in a given atom are roughly the same size.
C) Since electrons have mass, we must always consider them to have particle properties and never wavelike properties.
D) Atoms are roughly spherical because when all of the different shaped orbitals are overlapped, they take on a spherical shape.
E) All of the above are true.

Question 43

Calculate the frequency of light associated with the transition from in the hydrogen atom.

A) 2.19 × 10¹⁴ s^-1
B) 5.59 × 10¹⁴ s^-1
C) 4.57 × 10¹⁴ s^-1
D) 1.79 × 10¹⁴ s^-1
E) 3.28 × 10¹⁴ s^-1

Question 44

Which of the following quantum numbers describes the shape of an orbital?

A) principal quantum number
B) magnetic quantum number
C) spin quantum number
D) Schrödinger quantum number
E) angular momentum quantum number

Question 45

How many different values of l are possible in the third principal level?

A) 1
B) 2
C) 3
D) 0
E) 4

Question 46

Calculate the wavelength of light associated with the transition from in the hydrogen atom.

A) 103 nm
B) 155 nm
C) 646 nm
D) 971 nm
E) 136 nm

Question 47

Determine the energy change associated with the transition from in the hydrogen atom.

A) +3.03 × 10^-19 J
B) -1.82 × 10^-19 J
C) +5.51 × 10^-19 J
D) -3.03 × 10^-19 J
E) +2.69 × 10^-19 J

Question 48

It is possible to determine the ionization energy for hydrogen using the Bohr equation.Calculate the ionization energy (in kJ)for a mole of hydrogen atoms,making the assumption that ionization is the transition from

A) 7.62 × 10³ kJ
B) 2.76 × 10³ kJ
C) 1.31 × 10³ kJ
D) 3.62 × 10³ kJ
E) 5.33 × 10³ kJ

Question 49

Which of the following statements is TRUE?

A) The principal quantum number (n) describes the shape of an orbital.
B) The angular momentum quantum number (l) describes the the size and energy associated with an orbital.
C) The magnetic quantum number (m_l) describes the orientation of the orbital.
D) An orbital is the path that an electron follows during its movement in an atom.
E) All of the above are true.

Question 50

Determine the energy change associated with the transition from in the hydrogen atom.

A) -2.18 × 10^-19 J
B) +6.54 × 10^-19 J
C) +4.58 × 10^-19 J
D) -1.53 × 10^-19 J
E) +3.76 × 10^-19 J

Question 51

How many sublevels are contained in the second shell (n = 2)of a given atom?

A) 1
B) 2
C) 9
D) 4
E) 3

Question 52

Determine the end (final)value of n in a hydrogen atom transition,if the electron starts in and the atom emits a photon of light with a wavelength of 486 nm.

A) 1
B) 5
C) 3
D) 4
E) 2

Question 53

Give the possible values for m_l for an s orbital.

A) 0
B) -1, 0, 1
C) 0, 1
D) 1

Question 54

Determine the end (final)value of n in a hydrogen atom transition,if the electron starts in n = 2 and the atom absorbs a photon of light with a frequency of 4.57 × 10¹⁴ Hz.

A) 3
B) 1
C) 4
D) 6
E) 7

Question 55

Which of the following quantum numbers describes the orientation of an orbital?

A) magnetic quantum number
B) principal quantum number
C) angular momentum quantum number
D) spin quantum number
E) Schrödinger quantum number

Question 56

If two electrons in the same atom have the same value of "l",they are

A) in the same sublevel, but not necessarily in the same level.
B) in the same level, but different sublevel.
C) in the same orbital.
D) in different levels and in different shaped orbitals.
E) none of the above.

Question 57

Give the possible values for m_l for a p orbital.

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

Question 58

Calculate the energy change associated with the transition from in the hydrogen atom.

A) +4.89 × 10^-18 J
B) +1.64 × 10^-18 J
C) -6.12 × 10^-18 J
D) +3.55 × 10^-18 J
E) -2.04 × 10^-18 J

Question 59

Which of the following quantum numbers describes the size and energy of an orbital?

A) magnetic quantum number
B) principal quantum number
C) angular momentum quantum number
D) spin quantum number
E) Schrödinger quantum number

Question 60

Give the possible values for m_l for a d orbital.

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

Question 61

How many 8p orbitals exist?

A) 0
B) 1
C) 3
D) 5
E) 8

Question 62

Which of the following types of waves are considered electromagnetic radiation:
A.Radio Waves;
B.Sound Waves;
C.Microwaves;
D.Ocean Waves;
E.Mechanical Waves

A)A and B
B)A and C
C)B and D
D)A,C,and E
E)B,C,and D

Question 63

How many orbitals are present when l=3?

A) 1
B) 3
C) 5
D) 7
E) 9

Question 64

According to the Heisenberg Uncertainty Principle

A) an electron can never appear in the exact same position twice.
B) electrons must always absorb energy when moving to higher quantum levels.
C) an electron has a charge of 1.602 × 10^-19 C.
D) s orbitals are spherical in nature.
E) you cannot accurately know both the position and momentum of an electron at the same time.

Question 65

A green laser pointer has a wavelength of 532 nm.What is the energy of one mol of photons generated from this device?

A) 2.25 kJ/mol
B) 3.74 × 10^-19 kJ/mol
C) 3.74 × 10^-17 kJ/mol
D) 225 kJ/mol
E) 784 kJ/mol

Question 66

What is the maximum number of f orbitals that are possible in a given shell?

A) 1
B) 3
C) 7
D) 5
E) 9

Question 67

What is the energy of light associated with a transition from n=3 to n=8 in a hydrogen atom? Does this represent absorption or emission of a photon?

A) 2.08 × 10^-19 J, absorption
B) 2.08 × 10^-19 J, emission
C) 4.54 × 10^-19 J, absorption
D) 4.54 × 10^-19 J, emission
E) 6.81 × 10^-20 J, absorption

Question 68

What is the frequency of light with a wavelength of 0.440 uM?

A) 6.81 × 10¹⁴ sec^-1
B) 2.55 × 10¹³ sec^-1
C) 7.28 × 10¹⁴ sec^-1
D) 6.81 × 10¹¹ sec^-1
E) 5.93 × 10¹¹ sec^-1

Question 69

What is the maximum number of p orbitals that are possible in a given shell?

A) 1
B) 3
C) 7
D) 5
E) 9

Question 70

Calculate the wavelength of light emitted from a mol of photons as they transition from in the hydrogen atom.

A) 1093 nm
B) 970 nm
C) 342 nm
D) 643 nm
E) 740 nm

Question 71

Calculate the energy change associated with the transition from in the hydrogen atom.

A) +5.35 × 10^-19 J
B) -1.83 × 10^-19 J
C) -2.42 × 10^-19 J
D) -4.31 × 10^-19 J
E) +6.86 × 10^-19 J

Question 72

Give the numbers for m_l for an f orbital.

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

Question 73

What is the maximum number of d orbitals that are possible in a given shell?

A) 1
B) 3
C) 7
D) 5
E) 9

Question 74

How many nodes are found in a 3s orbital?

A) 0
B) 1
C) 2
D) 3
E) 4

Question 75

What is the maximum number of s orbitals that are possible in a given shell?

A) 1
B) 3
C) 7
D) 5
E) 9

Question 76

What is the wavelength of an electron (m = 9.11 × 10^-28 g)moving at 1/5 the speed of light?

A) 9.36 × 10^-9 m
B) 1.21 × 10^-11 m
C) 6.73 × 10^-8 m
D) 2.42 × 10^-12 m
E) 4.85 × 10^-10 m

Question 77

Which statement about electromagnetic radiation is correct?

A) The amplitude of a wave depends on the frequency.
B) As the wavelength decreases the energy decreases.
C) As the energy decreases the frequency decreases.
D) The wavelength and frequency are independent of each other.
E) Radio waves have a smaller wavelength than visible light.

Question 78

Describe the shape of a p orbital.

A) spherical
B) dumbbell shaped
C) three lobes
D) four lobes
E) eight lobes

Question 79

Describe the shape of an s orbital.

A) spherical
B) dumbbell shaped
C) three lobes
D) four lobes
E) eight lobes

Question 80

A scientist shines light with energy greater than the binding energy of platinum on a thin film of it.The same scientist then repeats the experiment with a higher intensity light.According to the photoelectric effect,what should be observed?

A) No electrons are ejected in either experiment.
B) Electrons are not ejected in the first experiment, but are in the second.
C) Electrons are ejected in both experiments, but the first experiment takes longer to eject electrons than the second.
D) Electrons are ejected in both experiments at the exact same time.
E) Electrons are ejected in both experiments, but the second experiment takes longer to eject electrons than the first.