Question 1

In the Bohr Model of the hydrogen atom, what is the potential energy of the electron in the n = 11 orbit? (The radius of the 1st Bohr orbit is 0.0529 nm.)

Accepted Answer

A)  2.25 * 10-1 eV 
B)  1.12*10-1 eV 
C)  5.62 * 10-2 eV 
D)  2.47 eV 
E)  None of these is correct. 
A)  2.25 * 10-1 eV 
B)  1.12*10-1 eV 
C)  5.62 * 10-2 eV 
D)  2.47 eV 
E)  None of these is correct.

Question 2

The orbital angular momentum of an electron in a D state has a magnitude of   . The figure shows orientations of the angular momentum vector or an electron placed in a magnetic field in the positive z direction. The vector that represents a correct orientation when the field is applied is

Accepted Answer

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

Question 3

The radius of the n = 1 Bohr orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 5 Bohr orbit?

Accepted Answer

A)  5(0.053) nm 
B)  25(0.053) nm 
C)  0.053 nm 
D)  (1/5)(0.053) nm 
E)  (1/25)(0.053) nm 
A)  5(0.053) nm 
B)  25(0.053) nm 
C)  0.053 nm 
D)  (1/5)(0.053) nm 
E)  (1/25)(0.053) nm

Question 4

A possible value of the orbital angular momentum of an electron in the n = 2 state is

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 5

The radius of the n = 1 orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 3 orbit of lithium, which has three protons in its nucleus?

Accepted Answer

A)  3(0.053) nm 
B)  9(0.053) nm 
C)  0.053 nm 
D)  (1/3)(0.053) nm 
E)  (1/9)(0.053) nm 
A)  3(0.053) nm 
B)  9(0.053) nm 
C)  0.053 nm 
D)  (1/3)(0.053) nm 
E)  (1/9)(0.053) nm

Question 6

The d state of an electronic configuration corresponds to

Accepted Answer

A)  n = 2 
B)    = 2 
C)    = 1 
D)  n = 0 
E)    = 3 
A)  n = 2 
B)    = 2 
C)    = 1 
D)  n = 0 
E)    = 3

Question 7

If the angular momentum is characterized by the quantum number   = 3, what is the smallest possible angle between   and the z axis?

Accepted Answer

A)  12.1º 
B)  17.5º 
C)  23.2º 
D)  27.4º 
E)  30.0º 
A)  12.1º 
B)  17.5º 
C)  23.2º 
D)  27.4º 
E)  30.0º

Question 8

The possible orbital quantum numbers of an electron are 0, 1, 3, 4, and 5. Its principal quantum number, n, and the largest magnetic quantum number, ml are

Accepted Answer

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

Question 9

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 5 state to the n = 1 state is approximately

Accepted Answer

A)  94.8 nm 
B)  0.109 nm 
C)  73.0 nm 
D)  90.0 nm 
E)  91.2 nm 
A)  94.8 nm 
B)  0.109 nm 
C)  73.0 nm 
D)  90.0 nm 
E)  91.2 nm

Question 10

The binding energy of a hydrogen atom is inversely proportional to the square of the principal quantum number n. The binding energy of the ground level of atomic hydrogen is 13.6 eV. The binding energy of the second (n = 2) level of the hydrogen atom is

Accepted Answer

A)  +13.6 eV 
B)  -13.6 eV 
C)  -3.4 eV 
D)  -54.8 eV 
E)  +3.4 eV 
A)  +13.6 eV 
B)  -13.6 eV 
C)  -3.4 eV 
D)  -54.8 eV 
E)  +3.4 eV

Question 11

For the hydrogen atom in the ground state, the radial probability density is   The probability of finding the electron in range $\Delta$r = 0.08a0 at r = a0 is approximately

Accepted Answer

A)  3.24% 
B)  4.33% 
C)  5.87% 
D)  6.25% 
E)  7.43% 
A)  3.24% 
B)  4.33% 
C)  5.87% 
D)  6.25% 
E)  7.43%

Question 12

An electron in the n = 3 state of a hydrogen atom falls into the n = 2 state. The Rydberg constant R is 1.097 * 10-2/nm. The wavelength of the photon emitted is approximately

Accepted Answer

A)  103 nm 
B)  110 nm 
C)  122 nm 
D)  486 nm 
E)  656 nm 
A)  103 nm 
B)  110 nm 
C)  122 nm 
D)  486 nm 
E)  656 nm

Question 13

The solid curve on the graph shows the probability of finding the electron at a distance r for

Accepted Answer

A)  n = 2,   = 2 
B)  n = 1,   = 0 
C)  n = 2,   = 2 
D)  n = 2,   = 0 
E)  n = 1,   = 1 
A)  n = 2,   = 2 
B)  n = 1,   = 0 
C)  n = 2,   = 2 
D)  n = 2,   = 0 
E)  n = 1,   = 1

Question 14

The order-of-magnitude of the diameter of an atom is closest to

Accepted Answer

A)  10-6 m 
B)  10-8 m 
C)  10-10 m 
D)  10-12 m 
E)  10-14 m 
A)  10-6 m 
B)  10-8 m 
C)  10-10 m 
D)  10-12 m 
E)  10-14 m

Question 15

When the voltage across an X-ray tube is doubled, the minimum wavelength of the bremsstrahlung radiation

Accepted Answer

A)  doubles. 
B)  quadruples. 
C)  decreases to one-half of its original wavelength. 
D)  remains constant. 
E)  None of these is correct. 
A)  doubles. 
B)  quadruples. 
C)  decreases to one-half of its original wavelength. 
D)  remains constant. 
E)  None of these is correct.

Question 16

The symbol that represents the orbital quantum number is

Accepted Answer

A)  n 
B)  m 
C)  L 
D)    
E)  z 
A)  n 
B)  m 
C)  L 
D)    
E)  z

Question 17

For the principal quantum number n = 4, the number of values the orbital quantum number l can have is

Accepted Answer

A)  4 
B)  3 
C)  7 
D)  16 
E)  6 
A)  4 
B)  3 
C)  7 
D)  16 
E)  6

Question 18

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 1 state is approximately

Accepted Answer

A)  0.920 * 10-6 nm 
B)  1.085 *10-4 nm 
C)  92.0 nm 
D)  0.0900 nm 
E)  46.5 nm 
A)  0.920 * 10-6 nm 
B)  1.085 *10-4 nm 
C)  92.0 nm 
D)  0.0900 nm 
E)  46.5 nm

Question 19

An X-ray spectrum of a particular metal, which is a plot of X-ray intensity (arbitrary units) versus wavelength (nm), is shown in the graph. The energy of the monoenergetic electrons producing this spectrum is

Accepted Answer

A)  16.5 keV 
B)  24.8 keV 
C)  12.4 keV 
D)  6.20 keV 
E)  3.14 keV 
A)  16.5 keV 
B)  24.8 keV 
C)  12.4 keV 
D)  6.20 keV 
E)  3.14 keV

Question 20

If the potential energy of an electron in the Bohr's model is -U0, then the kinetic energy and the total energy of the electron are, respectively,

Accepted Answer

A)  U0 and 0.5U0 
B)  0.5U0 and -0.5U0 
C)  0.5U0 and 0.5U0 
D)  U0 and -0.5U0 
E)  0.5U0 and U0 
A)  U0 and 0.5U0 
B)  0.5U0 and -0.5U0 
C)  0.5U0 and 0.5U0 
D)  U0 and -0.5U0 
E)  0.5U0 and U0

In the Bohr Model of the hydrogen atom, what is the potential energy of the electron in the n = 11 orbit? (The radius of the 1st Bohr orbit is 0.0529 nm.)

The orbital angular momentum of an electron in a D state has a magnitude of . The figure shows orientations of the angular momentum vector or an electron placed in a magnetic field in the positive z direction. The vector that represents a correct orientation when the field is applied is

The radius of the n = 1 Bohr orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 5 Bohr orbit?

A possible value of the orbital angular momentum of an electron in the n = 2 state is

The radius of the n = 1 orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 3 orbit of lithium, which has three protons in its nucleus?

The d state of an electronic configuration corresponds to

If the angular momentum is characterized by the quantum number = 3, what is the smallest possible angle between and the z axis?

The possible orbital quantum numbers of an electron are 0, 1, 3, 4, and 5. Its principal quantum number, n, and the largest magnetic quantum number, m_l are

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 5 state to the n = 1 state is approximately

The binding energy of a hydrogen atom is inversely proportional to the square of the principal quantum number n. The binding energy of the ground level of atomic hydrogen is 13.6 eV. The binding energy of the second (n = 2) level of the hydrogen atom is

An electron in the n = 3 state of a hydrogen atom falls into the n = 2 state. The Rydberg constant R is 1.097 * 10^-2/nm. The wavelength of the photon emitted is approximately

The solid curve on the graph shows the probability of finding the electron at a distance r for

The order-of-magnitude of the diameter of an atom is closest to

When the voltage across an X-ray tube is doubled, the minimum wavelength of the bremsstrahlung radiation

The symbol that represents the orbital quantum number is

For the principal quantum number n = 4, the number of values the orbital quantum number l can have is

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 1 state is approximately

An X-ray spectrum of a particular metal, which is a plot of X-ray intensity (arbitrary units) versus wavelength (nm), is shown in the graph. The energy of the monoenergetic electrons producing this spectrum is

If the potential energy of an electron in the Bohr's model is -U₀, then the kinetic energy and the total energy of the electron are, respectively,

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Exam 16: Atoms

In the Bohr Model of the hydrogen atom, what is the potential energy of the electron in the n = 11 orbit? (The radius of the 1st Bohr orbit is 0.0529 nm.)

The orbital angular momentum of an electron in a D state has a magnitude of . The figure shows orientations of the angular momentum vector or an electron placed in a magnetic field in the positive z direction. The vector that represents a correct orientation when the field is applied is

The radius of the n = 1 Bohr orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 5 Bohr orbit?

A possible value of the orbital angular momentum of an electron in the n = 2 state is

The radius of the n = 1 orbit in the hydrogen atom is 0.053 nm. What is the radius of the n = 3 orbit of lithium, which has three protons in its nucleus?

The d state of an electronic configuration corresponds to

If the angular momentum is characterized by the quantum number = 3, what is the smallest possible angle between and the z axis?

The possible orbital quantum numbers of an electron are 0, 1, 3, 4, and 5. Its principal quantum number, n, and the largest magnetic quantum number, ml are

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 5 state to the n = 1 state is approximately

The binding energy of a hydrogen atom is inversely proportional to the square of the principal quantum number n. The binding energy of the ground level of atomic hydrogen is 13.6 eV. The binding energy of the second (n = 2) level of the hydrogen atom is

For the hydrogen atom in the ground state, the radial probability density is The probability of finding the electron in range Δ\DeltaΔ r = 0.08a0 at r = a0 is approximately

An electron in the n = 3 state of a hydrogen atom falls into the n = 2 state. The Rydberg constant R is 1.097 * 10-2/nm. The wavelength of the photon emitted is approximately

The solid curve on the graph shows the probability of finding the electron at a distance r for

The order-of-magnitude of the diameter of an atom is closest to

When the voltage across an X-ray tube is doubled, the minimum wavelength of the bremsstrahlung radiation

The symbol that represents the orbital quantum number is

For the principal quantum number n = 4, the number of values the orbital quantum number l can have is

The wavelength of the photon emitted when a hydrogen atom undergoes a transition from the n = 10 state to the n = 1 state is approximately

An X-ray spectrum of a particular metal, which is a plot of X-ray intensity (arbitrary units) versus wavelength (nm), is shown in the graph. The energy of the monoenergetic electrons producing this spectrum is

If the potential energy of an electron in the Bohr's model is -U0, then the kinetic energy and the total energy of the electron are, respectively,

The Electric Field I: Discrete Charge Distributions

The Electric Field II: Continuous Charge Distributions

Electric Potential

Capacitance

Electric Current and Direct-Current Circuits

The Magnetic Field

Sources of the Magnetic Field

Magnetic Induction

Alternating-Current Circuits

Maxwells Equations and Electromagnetic Waves

Properties of Light

Optical Images

Interference and Diffraction

Wave Particle Duality and Quantum Physics

Applications of the Schrodinger Equation

Molecules

Solids and the Theory of Conduction

Relativity

Nuclear Physics

Elementary Particles and the Beginning of the Universe

Filters

The possible orbital quantum numbers of an electron are 0, 1, 3, 4, and 5. Its principal quantum number, n, and the largest magnetic quantum number, m_l are

An electron in the n = 3 state of a hydrogen atom falls into the n = 2 state. The Rydberg constant R is 1.097 * 10^-2/nm. The wavelength of the photon emitted is approximately

If the potential energy of an electron in the Bohr's model is -U₀, then the kinetic energy and the total energy of the electron are, respectively,