Question 1

When a high voltage is applied to a low-pressure gas causing it to glow,it will emit which type of spectrum?

Accepted Answer

A)  line emission 
B)  line absorption 
C)  continuous 
D)  monochromatic 
A)  line emission 
B)  line absorption 
C)  continuous 
D)  monochromatic A

Question 2

In the hydrogen atom the potential energy is negative,but the absolute value of the potential energy:

Accepted Answer

A)  is equal to the kinetic energy of the electron. 
B)  is twice the kinetic energy of the electron. 
C)  is half the kinetic energy of the electron. 
D)  is equal to n2 times the kinetic energy of the electron. 
A)  is equal to the kinetic energy of the electron. 
B)  is twice the kinetic energy of the electron. 
C)  is half the kinetic energy of the electron. 
D)  is equal to n2 times the kinetic energy of the electron. B

Question 3

The Bohr theory does not predict that:

Accepted Answer

A)  hydrogen atoms will give off the lines from the Balmer series. 
B)  the ground state of hydrogen is spherically symmetric. 
C)  it requires 13.6 eV to ionize hydrogen. 
D)  the approximate radius of a hydrogen atom is 5.3 × 10−11 m. 
A)  hydrogen atoms will give off the lines from the Balmer series. 
B)  the ground state of hydrogen is spherically symmetric. 
C)  it requires 13.6 eV to ionize hydrogen. 
D)  the approximate radius of a hydrogen atom is 5.3 × 10−11 m. B

Question 4

Selenium has atomic number 34.In its ground state,how many electrons are in its n = 2 shell?

Accepted Answer

A)  8 
B)  8. 
C)  2 
D)  10 
E)  ​16 
A)  8 
B)  8. 
C)  2 
D)  10 
E)  ​16

Question 5

Which of the following demonstrated the relation between the atomic number of a given element and the wavelength of the K-alpha x-ray photon emitted by that element?

Accepted Answer

A)  Bohr 
B)  Compton 
C)  Moseley 
D)  Pauli 
A)  Bohr 
B)  Compton 
C)  Moseley 
D)  Pauli

Question 6

In the Bohr model of the atom,the orbits where electrons move fastest:

Accepted Answer

A)  have the lowest energy. 
B)  have the highest energy. 
C)  have the biggest radius. 
D)  have the greatest angular momentum. 
A)  have the lowest energy. 
B)  have the highest energy. 
C)  have the biggest radius. 
D)  have the greatest angular momentum.

Question 7

The Bohr model of the hydrogen atom accounts for which quantum number?

Accepted Answer

A)  principal 
B)  orbital 
C)  orbital magnetic 
D)  All of the above. 
A)  principal 
B)  orbital 
C)  orbital magnetic 
D)  All of the above.

Question 8

What is the wavelength of the line in the Paschen series of hydrogen that is comprised of transitions from the n = 5 to the n = 3 levels? (R = 1.097 × 107 m−1 and 1 nm = 10−9 m)

Accepted Answer

A)  1406 nm 
B)  1282 nm 
C)  684 nm 
D)  750 nm 
E)  ​365 nm 
A)  1406 nm 
B)  1282 nm 
C)  684 nm 
D)  750 nm 
E)  ​365 nm

Question 9

Imagine that an electron had a spin of 5/2 so that its spin quantum number,ms,could have the following six values: ms = +5/2,+3/2,+1/2,-1/2,-3/2,and -5/2.If this were true,the first element with a filled shell would be:

Accepted Answer

A)  He with 2 electrons. 
B)  Be with 4 electrons. 
C)  C with 6 electrons. 
D)  O with 8 electrons. 
A)  He with 2 electrons. 
B)  Be with 4 electrons. 
C)  C with 6 electrons. 
D)  O with 8 electrons.

Question 10

If the energy for the ground state level (n = 1)of hydrogen is −13.6 eV,which of the following gives an approximate value for the energy of an electron of the K shell (n = 1)of the element beryllium for which the atomic number = 4?

Accepted Answer

A)  -122 eV 
B)  -40.8 eV 
C)  -218 eV 
D)  -54.4 eV 
E)  ​-40.8 eV 
A)  -122 eV 
B)  -40.8 eV 
C)  -218 eV 
D)  -54.4 eV 
E)  ​-40.8 eV

Question 11

The quantum mechanical model of the hydrogen atom requires that if the principal quantum number = 3,there will be permitted how many orbital magnetic quantum numbers?

Accepted Answer

A)  2 
B)  3 
C)  6 
D)  5 
E)  ​7 
A)  2 
B)  3 
C)  6 
D)  5 
E)  ​7

Question 12

The ground state electronic configuration for boron is 1s22s22p1.In which shell is the last (2p1)electron?

Accepted Answer

A)  K 
B)  M 
C)  ​L 
D)  N 
E)  ​O 
A)  K 
B)  M 
C)  ​L 
D)  N 
E)  ​O

Question 13

If the principal quantum number for hydrogen is 7,which one of the following is not a permitted orbital magnetic quantum number for that atom?

Accepted Answer

A)  10 
B)  -2 
C)  0 
D)  5 
E)  ​3 
A)  10 
B)  -2 
C)  0 
D)  5 
E)  ​3

Question 14

The quantum mechanical model of the hydrogen atom suggests a visual picture of the electron as which of the following?

Accepted Answer

A)  raisin in pudding 
B)  probability cloud 
C)  planetary orbiting body 
D)  light quantum 
A)  raisin in pudding 
B)  probability cloud 
C)  planetary orbiting body 
D)  light quantum

Question 15

The emission of a line from the Balmer series is followed almost immediately by the emission of a line from the Lyman series.This will be true for:

Accepted Answer

A)  only the first line of the Balmer series and the first line of the Lyman series. 
B)  all the lines of the Balmer series followed by only the first line of the Lyman series. 
C)  only the first line of the Balmer series followed by any of the lines of the Lyman series. 
D)  all the lines of the Balmer series followed by any of the lines of the Lyman series. 
A)  only the first line of the Balmer series and the first line of the Lyman series. 
B)  all the lines of the Balmer series followed by only the first line of the Lyman series. 
C)  only the first line of the Balmer series followed by any of the lines of the Lyman series. 
D)  all the lines of the Balmer series followed by any of the lines of the Lyman series.

Question 16

How many possible substates are available in a hydrogen atom where the principal quantum number is 6?

Accepted Answer

A)  12 
B)  36 
C)  72 
D)  144 
E)  ​18 
A)  12 
B)  36 
C)  72 
D)  144 
E)  ​18

Question 17

Which of the following transitions in hydrogen from an initial state (ni)to a final state (nf)results in the most energy emitted?

Accepted Answer

A)  ni = 80,nf = 2 
B)  ni = 3,nf = 95 
C)  ni = 2,nf = 1 
D)  ni = 1,nf = 3 
A)  ni = 80,nf = 2 
B)  ni = 3,nf = 95 
C)  ni = 2,nf = 1 
D)  ni = 1,nf = 3

Question 18

The speed of the electron in the Bohr theory of hydrogen is:

Accepted Answer

A)  proportional to n. 
B)  proportional to n2. 
C)  inversely proportional to n. 
D)  inversely proportional to n2. 
A)  proportional to n. 
B)  proportional to n2. 
C)  inversely proportional to n. 
D)  inversely proportional to n2.

Question 19

How many electrons are in chromium's (atomic number chromium)next to outer shell (n = 3)?

Accepted Answer

A)  1 
B)  14 
C)  12 
D)  13 
E)  ​8 
A)  1 
B)  14 
C)  12 
D)  13 
E)  ​8

Question 20

The quantum mechanical model of the hydrogen atom requires that if the principal quantum number is 5,there will be how many different permitted orbital quantum number(s)?

Accepted Answer

A)  4 
B)  10 
C)  5 
D)  25 
E)  ​11 
A)  4 
B)  10 
C)  5 
D)  25 
E)  ​11

Exam 28: Atomic Physics

When a high voltage is applied to a low-pressure gas causing it to glow,it will emit which type of spectrum?

In the hydrogen atom the potential energy is negative,but the absolute value of the potential energy:

The Bohr theory does not predict that:

Selenium has atomic number 34.In its ground state,how many electrons are in its n = 2 shell?

Which of the following demonstrated the relation between the atomic number of a given element and the wavelength of the K-alpha x-ray photon emitted by that element?

In the Bohr model of the atom,the orbits where electrons move fastest:

The Bohr model of the hydrogen atom accounts for which quantum number?

What is the wavelength of the line in the Paschen series of hydrogen that is comprised of transitions from the n = 5 to the n = 3 levels? (R = 1.097 × 107 m−1 and 1 nm = 10−9 m)

Imagine that an electron had a spin of 5/2 so that its spin quantum number,ms,could have the following six values: ms = +5/2,+3/2,+1/2,-1/2,-3/2,and -5/2.If this were true,the first element with a filled shell would be:

If the energy for the ground state level (n = 1)of hydrogen is −13.6 eV,which of the following gives an approximate value for the energy of an electron of the K shell (n = 1)of the element beryllium for which the atomic number = 4?

The quantum mechanical model of the hydrogen atom requires that if the principal quantum number = 3,there will be permitted how many orbital magnetic quantum numbers?

The ground state electronic configuration for boron is 1s22s22p1.In which shell is the last (2p1)electron?

If the principal quantum number for hydrogen is 7,which one of the following is not a permitted orbital magnetic quantum number for that atom?

The quantum mechanical model of the hydrogen atom suggests a visual picture of the electron as which of the following?

The emission of a line from the Balmer series is followed almost immediately by the emission of a line from the Lyman series.This will be true for:

How many possible substates are available in a hydrogen atom where the principal quantum number is 6?

Which of the following transitions in hydrogen from an initial state (ni)to a final state (nf)results in the most energy emitted?

The speed of the electron in the Bohr theory of hydrogen is:

How many electrons are in chromium's (atomic number chromium)next to outer shell (n = 3)?

The quantum mechanical model of the hydrogen atom requires that if the principal quantum number is 5,there will be how many different permitted orbital quantum number(s)?

Introduction

Introduction: Part A

Motion in One Dimension

Motion in One Dimension: Part A

Vectors and Two-Dimensional Motion

Vectors and Two-Dimensional Motion: Part A

The Laws of Motion

The Laws of Motion: Part A

Energy

Energy: Part A

Momentum and Collisions

Momentum and Collisions: Part A

Rotational Motion and the Law of Gravity

Rotational Motion and the Law of Gravity: Part A

Rotational Equilibrium and Rotational Dynamics

Rotational Equilibrium and Rotational Dynamics: Part A

Solids and Fluids

Solids and Fluids: Part A

Thermal Physics

Thermal Physics: Part A

Energy in Thermal Processes Heat and Internal Energy

Energy in Thermal Processes Heat and Internal Energy: Part A

The Laws of Thermodynamics Work in Thermodynamic Processes

The Laws of Thermodynamics Work in Thermodynamic Processes: Part A

Vibrations and Waves

Vibrations and Waves: Part A

Sound

Sound: Part A

Electric Forces and Electric Fields

Electric Forces and Electric Fields: Part A

Electrical Energy and Capacitance

Electrical Energy and Capacitance: Part A

Current and Resistance Electric Current

Current and Resistance Electric Current: Part A

Direct-Current Circuits Sources of EMF

Direct-Current Circuits Sources of EMF: Part A

Magnetism Magnets

Magnetism Magnets: Part A

Induced Voltages and Inductance

Induced Voltages and Inductance: Part A

Alternating-Current Circuits and Electromagnetic Waves

Alternating-Current Circuits and Electromagnetic Waves: Part A

Reflection and Refraction of Light

Reflection and Refraction of Light: Part A

Mirrors and Lenses

Mirrors and Lenses: Part A

Wave Optics

Wave Optics: Part A

Optical Instruments

Optical Instruments: Part A

Relativity

Relativity: Part A

Quantum Physics Blackbody Radiation and Plancks Hypothesis

Quantum Physics Blackbody Radiation and Plancks Hypothesis: Part A

Atomic Physics: Part A

Nuclear Physics

Nuclear Physics: Part A

Nuclear Energy and Elementary Particles

Nuclear Energy and Elementary Particles: Part A

What is the wavelength of the line in the Paschen series of hydrogen that is comprised of transitions from the n = 5 to the n = 3 levels? (R = 1.097 × 10⁷ m−¹ and 1 nm = 10−⁹ m)

Imagine that an electron had a spin of 5/2 so that its spin quantum number,m_s,could have the following six values: m_s = +5/2,+3/2,+1/2,-1/2,-3/2,and -5/2.If this were true,the first element with a filled shell would be:

The ground state electronic configuration for boron is 1s²2s²2p¹.In which shell is the last (2p¹)electron?

Which of the following transitions in hydrogen from an initial state (n_i)to a final state (n_f)results in the most energy emitted?