Question 1

Give the electron configuration for O.

Accepted Answer

A) 1s22s22p4 
B) 1s22p4 
C) 1s22s22p3 
D) 1s22s22p5 
E) 1s22s22p2 
A) 1s22s22p4 
B) 1s22p4 
C) 1s22s22p3 
D) 1s22s22p5 
E) 1s22s22p2 A

Question 2

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

Accepted Answer

A) 8.81 m s-1 
B) 12.3 m s-1 
C) 2.21 m s-1 
D) 4.98 m s-1 
E) 6.44 m s-1 
A) 8.81 m s-1 
B) 12.3 m s-1 
C) 2.21 m s-1 
D) 4.98 m s-1 
E) 6.44 m s-1 D

Question 3

Calculate the energy of an electron in the orbital n = 5 of a hydrogen atom.

Accepted Answer

A) -1.08 × 10-19 J 
B) 8.72 × 10-20 J 
C) 1.08 × 10-19 J 
D) -8.72 × 10-20 J 
E) -7.21 × 10-20 J 
A) -1.08 × 10-19 J 
B) 8.72 × 10-20 J 
C) 1.08 × 10-19 J 
D) -8.72 × 10-20 J 
E) -7.21 × 10-20 J D

Question 4

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

Accepted Answer

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 
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 5

Determine the mass of a ball with a wavelength of 3.45 × 10-34 m and a velocity of 6.55 m s-1.

Accepted Answer

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

Question 6

Give the number of valence electrons for Br-.

Accepted Answer

A) 16 
B) 18 
C) 6 
D) 8 
E) 7 
A) 16 
B) 18 
C) 6 
D) 8 
E) 7

Question 7

Identify the correct values for a 4f sublevel.

Accepted Answer

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

Question 8

Identify the set of four quantum numbers that could represent the electron lost to form the K ION from the K atom.

Accepted Answer

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

Question 9

The complete electron configuration of gallium, element 31, is ________.

Accepted Answer

A) 1s22s22p103s23p104s23d3 
B) 1s22s22p63s23p63d104s24p1 
C) 1s42s42p63s43p64s43d3  
D) 1s42s42p103s43p9 
E) 1s42s42p83s43p84s3 
A) 1s22s22p103s23p104s23d3 
B) 1s22s22p63s23p63d104s24p1 
C) 1s42s42p63s43p64s43d3  
D) 1s42s42p103s43p9 
E) 1s42s42p83s43p84s3

Question 10

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

Accepted Answer

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

Question 11

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves

Accepted Answer

A) gamma rays < radio waves < ultraviolet light 
B) radio waves < ultraviolet light < gamma rays 
C) radio waves < gamma rays < ultraviolet light 
D) ultraviolet light < gamma rays < radio waves 
E) gamma rays < ultraviolet light < radio waves 
A) gamma rays < radio waves < ultraviolet light 
B) radio waves < ultraviolet light < gamma rays 
C) radio waves < gamma rays < ultraviolet light 
D) ultraviolet light < gamma rays < radio waves 
E) gamma rays < ultraviolet light < radio waves

Question 12

Determine the mass of a ball with a velocity of 35.1 m s-1 and a wavelength of 8.92 × 10-34 m.

Accepted Answer

A) 26.0 g 
B) 594 g 
C) 2.08 g 
D) 47.3 g 
E) 21.2 g 
A) 26.0 g 
B) 594 g 
C) 2.08 g 
D) 47.3 g 
E) 21.2 g

Question 13

Match the following.

-n = 5 to n = 3

Accepted Answer

A) 657 nm 
B) 7460 nm 
C) 103 nm 
D) 1280 nm 
E) 122 nm 
A) 657 nm 
B) 7460 nm 
C) 103 nm 
D) 1280 nm 
E) 122 nm

Question 14

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -2.42 × 10-19 J.

Accepted Answer

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

Question 15

Identify the set of four quantum numbers that represent the last electron added (using the aufbau principle)to the Zn atom.

Accepted Answer

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

Question 16

When filling degenerate orbitals, electrons fill them singly first, with parallel spins. What is this known as?

Accepted Answer

A) Pauli exclusion principle 
B) Hund's rule 
C) aufbau principle 
D) Heisenberg uncertainty principle 
A) Pauli exclusion principle 
B) Hund's rule 
C) aufbau principle 
D) Heisenberg uncertainty principle

Question 17

Which of the following statements is TRUE?

Accepted Answer

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. 
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 18

Calculate the final orbital, nf, of an electron in a hydrogen atom that starts at orbital n = 4 and undergoes an energy transition of -1.06 × 10-19 J.

Accepted Answer

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

Question 19

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

Accepted Answer

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

Question 20

Identify the colour that has a wavelength of 460 nm.

Accepted Answer

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

Exam 7: The Quantum-Mechanical Model of the Atom

Give the electron configuration for O.

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

Calculate the energy of an electron in the orbital n = 5 of a hydrogen atom.

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

Determine the mass of a ball with a wavelength of 3.45 × 10-34 m and a velocity of 6.55 m s-1.

Give the number of valence electrons for Br-.

Identify the correct values for a 4f sublevel.

Identify the set of four quantum numbers that could represent the electron lost to form the K ION from the K atom.

The complete electron configuration of gallium, element 31, is ________.

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

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves

Determine the mass of a ball with a velocity of 35.1 m s-1 and a wavelength of 8.92 × 10-34 m.

Match the following. -n = 5 to n = 3

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -2.42 × 10-19 J.

Identify the set of four quantum numbers that represent the last electron added (using the aufbau principle)to the Zn atom.

When filling degenerate orbitals, electrons fill them singly first, with parallel spins. What is this known as?

Which of the following statements is TRUE?

Calculate the final orbital, nf, of an electron in a hydrogen atom that starts at orbital n = 4 and undergoes an energy transition of -1.06 × 10-19 J.

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

Identify the colour that has a wavelength of 460 nm.

Units of Measurement for Physical and Chemical Change

Atoms and Elements

Molecules, Compounds, and Nomenclature

Chemical Reactions and Stoichiometry

Gases

Thermochemistry

Periodic Properties of the Elements

Chemical Bonding I: Lewis Theory

Chemical Bonding Ii: Molecular Shapes, Valence Bond Theory, and Molecular Orbital Theory

Liquids, Solids, and Intermolecular Forces

Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Aqueous Ionic Equilibrium

Gibbs Energy and Thermodynamics

Electrochemistry

Radioactivity and Nuclear Chemistry

Organic Chemistry I: Structures

Organic Chemistry II: Reactions

Biochemistry

Chemistry of the Nonmetals

Metals and Metallury

Transition Metals and Coordination Compounds

Filters

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

Determine the mass of a ball with a wavelength of 3.45 × 10^-34m and a velocity of 6.55 m s^-1.

Give the number of valence electrons for Br^-.

Determine the mass of a ball with a velocity of 35.1 m s^-1 and a wavelength of 8.92 × 10^-34 m.

Calculate the orbital for the hydrogen atom that contains an electron with an energy of -2.42 × 10^-19 J.

Calculate the final orbital, n_f, of an electron in a hydrogen atom that starts at orbital n = 4 and undergoes an energy transition of -1.06 × 10^-19 J.