Question 1

The electron in a hydrogen atom is in the n = 3 state. What is(are) the possible value(s) for an emitted photon?

Accepted Answer

A) 1.89 eV or 12.09 eV 
B) 1.89 eV or 13.6 eV 
C) 0.66 eV or 13.6 eV 
D) 0.66 eV or 12.09 eV 
E) 1.51 eV only 
A) 1.89 eV or 12.09 eV 
B) 1.89 eV or 13.6 eV 
C) 0.66 eV or 13.6 eV 
D) 0.66 eV or 12.09 eV 
E) 1.51 eV only

Question 2

Consider the following list of electron configurations:  
-Which electronic configuration is characteristic of noble gases?

Accepted Answer

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

Question 3

Consider the following list of electron configurations:  
-Which one of the above configurations represents an excited state of a neutral atom?

Accepted Answer

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

Question 4

Determine the maximum number of electron states with principal quantum number n = 3?

Accepted Answer

A) 2 
B) 3 
C) 6 
D) 9 
E) 18 
A) 2 
B) 3 
C) 6 
D) 9 
E) 18

Question 5

What is the total number of subshells in the n = 3 level?

Accepted Answer

A) 3 
B) 6 
C) 7 
D) 9 
E) 18 
A) 3 
B) 6 
C) 7 
D) 9 
E) 18

Question 6

Which one of the following will result in an electron transition from the n = 4 level to the n = 7 level in a hydrogen atom?

Accepted Answer

A) emission of a 0.28 eV photon 
B) emission of a 0.57 eV photon 
C) absorption of a 0.85 eV photon 
D) absorption of a 0.28 eV photon 
E) absorption of a 0.57 eV photon 
A) emission of a 0.28 eV photon 
B) emission of a 0.57 eV photon 
C) absorption of a 0.85 eV photon 
D) absorption of a 0.28 eV photon 
E) absorption of a 0.57 eV photon

Question 7

Consider the following list of electron configurations:  
-Which one of the above configurations represents a transition element?

Accepted Answer

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

Question 8

Each atom in the periodic table has a unique set of spectral lines. Which one of the following statements is the best explanation for this observation?

Accepted Answer

A) Each atom has a dense central nucleus. 
B) Electrons in atoms orbit the nucleus. 
C) Each atom has a unique set of energy levels that electrons can move between. 
D) Electrons in atoms are in constant motion. 
E) Each atom is composed of positive and negative charges. 
A) Each atom has a dense central nucleus. 
B) Electrons in atoms orbit the nucleus. 
C) Each atom has a unique set of energy levels that electrons can move between. 
D) Electrons in atoms are in constant motion. 
E) Each atom is composed of positive and negative charges.

Question 9

An electron makes a transition from a higher energy state to a lower one without any external provocation. As a result of the transition, a photon is emitted and moves in a random direction. What is the name of this emission process?

Accepted Answer

A) stationary emission 
B) stimulated emission 
C) spectral emission 
D) spontaneous emission 
E) specular emission 
A) stationary emission 
B) stimulated emission 
C) spectral emission 
D) spontaneous emission 
E) specular emission

Question 10

Each atom in the periodic table has a unique set of spectral lines. The model of atomic structure that provides the best explanation for this observation was proposed by

Accepted Answer

A) Balmer. 
B) Bohr. 
C) Einstein. 
D) Rutherford. 
E) Thomson. 
A) Balmer. 
B) Bohr. 
C) Einstein. 
D) Rutherford. 
E) Thomson.

Question 11

According to the Bohr model, what is the radius of a hydrogen atom when its electron is excited to the n = 9 state?

Accepted Answer

A) 5.87 × 10-12 m 
B) 5.29 × 10-11 m 
C) 4.76 × 10-10 m 
D) 4.28 × 10-9 m 
E) 1.51 × 10-8 m 
A) 5.87 × 10-12 m 
B) 5.29 × 10-11 m 
C) 4.76 × 10-10 m 
D) 4.28 × 10-9 m 
E) 1.51 × 10-8 m

Question 12

Complete the following sentence: Holography is

Accepted Answer

A) the projection of an image produced by a combination of mirrors and lenses. 
B) a photograph of the light produced by a laser. 
C) a process for producing three dimensional images using the interference of laser light beams. 
D) the name for an imaging process that occurs within a camera when a photograph is taken. 
E) the production of a two dimensional image of the three dimensional object. 
A) the projection of an image produced by a combination of mirrors and lenses. 
B) a photograph of the light produced by a laser. 
C) a process for producing three dimensional images using the interference of laser light beams. 
D) the name for an imaging process that occurs within a camera when a photograph is taken. 
E) the production of a two dimensional image of the three dimensional object.

Question 13

An electron in an atom has the following set of quantum numbers:
n = 2,   = 1,   = -1, mS1U1B1sS1U1B0 = +1/2.
-What shell is this electron occupying?

Accepted Answer

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

Question 14

Determine the wavelength of incident electromagnetic radiation required to cause an electron transition from the n = 5 to the n = 7 level in a hydrogen atom.

Accepted Answer

A) 1.1 × 103 nm 
B) 2.8 × 103 nm 
C) 3.5 × 103 nm 
D) 4.6 × 103 nm 
E) 5.2 × 103 nm 
A) 1.1 × 103 nm 
B) 2.8 × 103 nm 
C) 3.5 × 103 nm 
D) 4.6 × 103 nm 
E) 5.2 × 103 nm

Question 15

The principle quantum number for the electron in a hydrogen atom is n = 5. According to the quantum mechanical picture of the atom, what is the maximum possible value for the magnitude of the z-component of the angular momentum of the electron?

Accepted Answer

A) 3.17 × 10-34 kg .m2/s 
B) 4.22 × 10-34 kg . m2/s 
C) 1.99 × 10-34 kg . m2/s 
D) 1.06 × 10-34 kg . m2/s 
E) 2.11 × 10-33 kg . m2/s 
A) 3.17 × 10-34 kg .m2/s 
B) 4.22 × 10-34 kg . m2/s 
C) 1.99 × 10-34 kg . m2/s 
D) 1.06 × 10-34 kg . m2/s 
E) 2.11 × 10-33 kg . m2/s

Question 16

Which one of the following statements best explains why a neon sign does not emit visible light after it is turned off?

Accepted Answer

A) All of the neon atoms are ionized. 
B) Most of the neon atoms are in the ground state. 
C) None of the neon atoms are in the n = 2 state. 
D) All of the neon atoms have principle quantum number n = 0. 
E) Only some of the neon atoms have returned to the n = 1 state. 
A) All of the neon atoms are ionized. 
B) Most of the neon atoms are in the ground state. 
C) None of the neon atoms are in the n = 2 state. 
D) All of the neon atoms have principle quantum number n = 0. 
E) Only some of the neon atoms have returned to the n = 1 state.

Question 17

Which one of the following statements is the assumption that Niels Bohr made about the angular momentum of the electron in the hydrogen atom?

Accepted Answer

A) The angular momentum of the electron is zero. 
B) The angular momentum can have only certain discrete values. 
C) Angular momentum is not quantized. 
D) The angular momentum can have any value greater than zero because it's proportional to the radius of the orbit. 
E) The angular momentum is independent of the mass of the electron. 
A) The angular momentum of the electron is zero. 
B) The angular momentum can have only certain discrete values. 
C) Angular momentum is not quantized. 
D) The angular momentum can have any value greater than zero because it's proportional to the radius of the orbit. 
E) The angular momentum is independent of the mass of the electron.

Question 18

Name the physicist credited with the following statement: No two electrons in an atom can have the same set of values for the four quantum numbers.

Accepted Answer

A) Werner Heisenberg 
B) Wolfgang Pauli 
C) Arthur Compton 
D) Niels Bohr 
E) Erwin Schrödinger 
A) Werner Heisenberg 
B) Wolfgang Pauli 
C) Arthur Compton 
D) Niels Bohr 
E) Erwin Schrödinger

Question 19

An electron in a hydrogen atom is described by the quantum numbers: n = 7 and ml = 4. What are the possible values for the orbital quantum number   ?

Accepted Answer

A) only 0 or 4 
B) only 4 or 7 
C) only 5 or 6 
D) only 4, 5, or 6 
E) only 5, 6, or 7 
A) only 0 or 4 
B) only 4 or 7 
C) only 5 or 6 
D) only 4, 5, or 6 
E) only 5, 6, or 7

Question 20

The figure shows an energy level diagram for the hydrogen atom. Several transitions are shown and are labeled by letters.   Note: The diagram is not drawn to scale.
-Which transition will occur when a hydrogen atom is irradiated with radiation of wavelength 103 nm?

Accepted Answer

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

Exam 30: The Nature of the Atom

The electron in a hydrogen atom is in the n = 3 state. What is(are) the possible value(s) for an emitted photon?

Consider the following list of electron configurations: -Which electronic configuration is characteristic of noble gases?

Consider the following list of electron configurations: -Which one of the above configurations represents an excited state of a neutral atom?

Determine the maximum number of electron states with principal quantum number n = 3?

What is the total number of subshells in the n = 3 level?

Which one of the following will result in an electron transition from the n = 4 level to the n = 7 level in a hydrogen atom?

Consider the following list of electron configurations: -Which one of the above configurations represents a transition element?

Each atom in the periodic table has a unique set of spectral lines. Which one of the following statements is the best explanation for this observation?

An electron makes a transition from a higher energy state to a lower one without any external provocation. As a result of the transition, a photon is emitted and moves in a random direction. What is the name of this emission process?

Each atom in the periodic table has a unique set of spectral lines. The model of atomic structure that provides the best explanation for this observation was proposed by

According to the Bohr model, what is the radius of a hydrogen atom when its electron is excited to the n = 9 state?

Complete the following sentence: Holography is

An electron in an atom has the following set of quantum numbers: n = 2, = 1, = -1, ms = +1/2. -What shell is this electron occupying?

Determine the wavelength of incident electromagnetic radiation required to cause an electron transition from the n = 5 to the n = 7 level in a hydrogen atom.

The principle quantum number for the electron in a hydrogen atom is n = 5. According to the quantum mechanical picture of the atom, what is the maximum possible value for the magnitude of the z-component of the angular momentum of the electron?

Which one of the following statements best explains why a neon sign does not emit visible light after it is turned off?

Which one of the following statements is the assumption that Niels Bohr made about the angular momentum of the electron in the hydrogen atom?

Name the physicist credited with the following statement: No two electrons in an atom can have the same set of values for the four quantum numbers.

An electron in a hydrogen atom is described by the quantum numbers: n = 7 and ml = 4. What are the possible values for the orbital quantum number ?

The figure shows an energy level diagram for the hydrogen atom. Several transitions are shown and are labeled by letters. Note: The diagram is not drawn to scale. -Which transition will occur when a hydrogen atom is irradiated with radiation of wavelength 103 nm?

Introduction and Mathematical Concepts

Kinematics in One Dimension

Kinematics in Two Dimensions

Forces and Newtons Laws of Motion

Dynamics of Uniform Circular Motion

Work and Energy

Impulse and Momentum

Rotational Kinematics

Rotational Dynamics

Simple Harmonic Motion and Elasticity

Fluids

Temperature and Heat

The Transfer of Heat

The Ideal Gas Law and Kinetic Theory

Thermodynamics

Waves and Sound

The Principle of Linear Superposition and Interference Phenomena

Electric Forces and Electric Fields

Electric Potential Energy and the Electric Potential

Electric Circuits

Magnetic Forces and Magnetic Fields

Electromagnetic Induction

Alternating Current Circuits

Electromagnetic Waves

The Refl Ection of Light: Mirrors

The Refraction of Light: Lenses and Optical Instruments

Interference and the Wave Nature of Light

Special Relativity

Particles and Waves

Nuclear Physics and Radioactivity

Ionizing Radiation, Nuclear Energy, and Elementary Particles

Filters

An electron in an atom has the following set of quantum numbers: n = 2, = 1, = -1, m_s = +1/2. -What shell is this electron occupying?

An electron in a hydrogen atom is described by the quantum numbers: n = 7 and m_l = 4. What are the possible values for the orbital quantum number ?