Question 1

A sunburn is caused by overexposure to ________ radiation.

Accepted Answer

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

Question 2

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

Accepted Answer

A)  9 
B)  1 
C)  12 
D)  6 
E)  10 
A)  9 
B)  1 
C)  12 
D)  6 
E)  10

Question 3

Identify the orbital.

Accepted Answer

A)  pz orbital 
B)  dxy orbital 
C)  px orbital 
D)  dyz orbital 
E)  py orbital 
A)  pz orbital 
B)  dxy orbital 
C)  px orbital 
D)  dyz orbital 
E)  py orbital

Question 4

Identify the correct values for a 1s orbital.

Accepted Answer

A)  n = 3, l = 1, ml = +1 
B)  n = 2, l = 1, ml = 0 
C)  n = 1, l = 0, ml = 0 
D)  n = 2, l = 0, ml = -1 
E)  n = 4, l = 1, ml = -2 
A)  n = 3, l = 1, ml = +1 
B)  n = 2, l = 1, ml = 0 
C)  n = 1, l = 0, ml = 0 
D)  n = 2, l = 0, ml = -1 
E)  n = 4, l = 1, ml = -2

Question 5

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4p orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

Accepted Answer

A)  656.3 nm 
B)  486.2 nm 
C)  364.6 nm 
D)  2.057 × 10-3 nm 
A)  656.3 nm 
B)  486.2 nm 
C)  364.6 nm 
D)  2.057 × 10-3 nm

Question 6

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

Accepted Answer

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

Question 7

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

Accepted Answer

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

Question 8

Place the following types of electromagnetic radiation in order of increasing wavelength. visible light x-rays microwaves

Accepted Answer

A)  x-rays < microwaves < visible light 
B)  microwaves < visible light < x-rays 
C)  microwaves < x-rays < visible light 
D)  visible light < x-rays < microwaves 
E)  x-rays < visible light < microwaves 
A)  x-rays < microwaves < visible light 
B)  microwaves < visible light < x-rays 
C)  microwaves < x-rays < visible light 
D)  visible light < x-rays < microwaves 
E)  x-rays < visible light < microwaves

Question 9

What is the maximum number of d orbitals that are possible?

Accepted Answer

A)  2 
B)  4 
C)  8 
D)  5 
E)  11 
A)  2 
B)  4 
C)  8 
D)  5 
E)  11

Question 10

How many different values of ml are possible in the 5f sublevel?

Accepted Answer

A)  1 
B)  7 
C)  4 
D)  5 
E)  2 
A)  1 
B)  7 
C)  4 
D)  5 
E)  2

Question 11

Determine the velocity of a marble (m = 8.11 g)with a wavelength of 3.46 × 10-33 m.

Accepted Answer

A)  42.3 m/s 
B)  2.36 m/s 
C)  23.6 m/s 
D)  38.8 m/s 
E)  52.9 m/s 
A)  42.3 m/s 
B)  2.36 m/s 
C)  23.6 m/s 
D)  38.8 m/s 
E)  52.9 m/s

Question 12

In which orbital below would an electron (on average)be closest to the nucleus?

Accepted Answer

A)  4f 
B)  4s 
C)  2s 
D)  5d 
E)  5p 
A)  4f 
B)  4s 
C)  2s 
D)  5d 
E)  5p

Question 13

Which of the following transitions (in a hydrogen atom)represent emission of the longest wavelength photon?

Accepted Answer

A)  n = 1 to n = 3 
B)  n = 3 to n = 2 
C)  n = 3 to n = 4 
D)  n = 5 to n = 2 
E)  n = 5 to n = 4 
A)  n = 1 to n = 3 
B)  n = 3 to n = 2 
C)  n = 3 to n = 4 
D)  n = 5 to n = 2 
E)  n = 5 to n = 4

Question 14

Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye.The energy of one photon of this light is 3.46 × 10-19 J.Thus,a laser that emits 1.3 × 10-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

Accepted Answer

A)  2.7 × 10-17 
B)  7.8 × 10-24 
C)  2.2 × 1019 
D)  3.8 × 1016 
E)  6.5 × 1013 
A)  2.7 × 10-17 
B)  7.8 × 10-24 
C)  2.2 × 1019 
D)  3.8 × 1016 
E)  6.5 × 1013

Question 15

Which of the following statements is TRUE?

Accepted Answer

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. 
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 16

What is the photoelectric effect?

Accepted Answer

Many metals emit electrons whe

Question 17

Identify the correct values for a 4f orbital.

Accepted Answer

A)  n = 3, l = 2, ml = 1 
B)  n = 2, l = 1, ml = 1 
C)  n = 1, l = 0, ml = 0 
D)  n = 2, l = 0, ml = 0 
E)  n = 4, l = 3, ml = -2 
A)  n = 3, l = 2, ml = 1 
B)  n = 2, l = 1, ml = 1 
C)  n = 1, l = 0, ml = 0 
D)  n = 2, l = 0, ml = 0 
E)  n = 4, l = 3, ml = -2

Question 18

Identify the color of a flame test for potassium.

Accepted Answer

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

Question 19

Identify the correct values for a 3p orbital.

Accepted Answer

A)  n = 3, l = 1, ml = 0 
B)  n = 2, l = 1, ml = 0 
C)  n = 1, l = 0, ml = 0 
D)  n = 2, l = 0, ml = 0 
E)  n = 4, l = -1, ml = +1 
A)  n = 3, l = 1, ml = 0 
B)  n = 2, l = 1, ml = 0 
C)  n = 1, l = 0, ml = 0 
D)  n = 2, l = 0, ml = 0 
E)  n = 4, l = -1, ml = +1

Question 20

How many different values of ml are possible in the 4d sublevel?

Accepted Answer

A)  2 
B)  0 
C)  3 
D)  5 
E)  6 
A)  2 
B)  0 
C)  3 
D)  5 
E)  6

Exam 7: The Quantum-Mechanical Model of the Atom

A sunburn is caused by overexposure to ________ radiation.

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

Identify the orbital.

Identify the correct values for a 1s orbital.

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4p orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1.

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

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

Place the following types of electromagnetic radiation in order of increasing wavelength. visible light x-rays microwaves

What is the maximum number of d orbitals that are possible?

How many different values of ml are possible in the 5f sublevel?

Determine the velocity of a marble (m = 8.11 g)with a wavelength of 3.46 × 10-33 m.

In which orbital below would an electron (on average)be closest to the nucleus?

Which of the following transitions (in a hydrogen atom)represent emission of the longest wavelength photon?

Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye.The energy of one photon of this light is 3.46 × 10-19 J.Thus,a laser that emits 1.3 × 10-2 J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

Which of the following statements is TRUE?

What is the photoelectric effect?

Identify the correct values for a 4f orbital.

Identify the color of a flame test for potassium.

Identify the correct values for a 3p orbital.

How many different values of ml are possible in the 4d sublevel?

Matter, measurement, and Problem Solving

Atoms and Elements

Molecules,compounds,and Chemical Equations

Chemical Quantities and Aqueous Reactions

Gases

Thermochemistry

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes,valence Bond Theory,

Liquids,solids,and Intermolecular Forces

Solids and Modern Materials

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Free Energy and Thermodynamics

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Radioactivity and Nuclear Chemistry

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Filters

For hydrogen,what is the wavelength of the photon emitted when an electron drops from a 4p orbital to a 2s orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10^-2 nm^-1.

How many different values of m_l are possible in the 5f sublevel?

Determine the velocity of a marble (m = 8.11 g)with a wavelength of 3.46 × 10^-33 m.

Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye.The energy of one photon of this light is 3.46 × 10^-1⁹ J.Thus,a laser that emits 1.3 × 10^-² J of energy in a pulse of light at this wavelength produces ________ photons in each pulse.

How many different values of m_l are possible in the 4d sublevel?