Question 1

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

Accepted Answer

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

Question 2

Calculate the energy of an electron in the orbital n = 6 of a hydrogen atom.

Accepted Answer

A) 3.19 × 10-20 J 
B) 4.18 × 10-20 J 
C) -6.06 × 10-20 J 
D) -7.80 × 10-20 J 
E) -8.62 × 10-20 J 
A) 3.19 × 10-20 J 
B) 4.18 × 10-20 J 
C) -6.06 × 10-20 J 
D) -7.80 × 10-20 J 
E) -8.62 × 10-20 J

Question 3

Calculate the energy of the green light emitted,per photon,by a mercury lamp with a frequency of 5.49 × 1014 Hz.

Accepted Answer

A) 2.75 × 10-19 J 
B) 3.64 × 10-19 J 
C) 5.46 × 10-19 J 
D) 1.83 × 10-19 J 
E) 4.68 × 10-19 J 
A) 2.75 × 10-19 J 
B) 3.64 × 10-19 J 
C) 5.46 × 10-19 J 
D) 1.83 × 10-19 J 
E) 4.68 × 10-19 J

Question 4

In which orbital below would an electron (on average)be farthest from the nucleus?

Accepted Answer

A) 1s 
B) 4f 
C) 3s 
D) 3d 
E) 2p 
A) 1s 
B) 4f 
C) 3s 
D) 3d 
E) 2p

Question 5

An electron ends in orbital n = 4 after a hydrogen atom absorbs a photon with a wavelength of 486 nm.Calculate the initial orbital,ni.

Accepted Answer

A) 1 
B) 5 
C) 2 
D) 3 
E) 6 
A) 1 
B) 5 
C) 2 
D) 3 
E) 6

Question 6

An electron initially in the n = 2 orbital of a hydrogen atom absorbs a photon with a wavelength of 656 nm.Calculate the final orbital,nf.

Accepted Answer

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

Question 7

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 8

How many photons are contained in a burst of yellow light (589 nm)from a sodium lamp that contains 609 kJ of energy?

Accepted Answer

A) 3.37 × 1019 photons 
B) 3.06 × 1030 photons 
C) 1.80 × 1024 photons 
D) 4.03 × 1028 photons 
E) 2.48 × 1025 photons 
A) 3.37 × 1019 photons 
B) 3.06 × 1030 photons 
C) 1.80 × 1024 photons 
D) 4.03 × 1028 photons 
E) 2.48 × 1025 photons

Question 9

Each of the following sets of quantum numbers is supposed to specify an orbital.Choose the one set of quantum numbers that does not contain an error.

Accepted Answer

A) n = 4,l = 4,ml = 0 
B) n = 3,l = 2,ml = +3 
C) n = 4,l = 0,ml = -1 
D) n = 3,l = 1,ml = -2 
E) n = 5,l = 3,ml = -3 
A) n = 4,l = 4,ml = 0 
B) n = 3,l = 2,ml = +3 
C) n = 4,l = 0,ml = -1 
D) n = 3,l = 1,ml = -2 
E) n = 5,l = 3,ml = -3

Question 10

Give the ground-state electron configuration for Cd+2.

Accepted Answer

Question 11

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

Question 12

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

Accepted Answer

A) 9 
B) 3 
C) 18 
D) 7 
E) 5 
A) 9 
B) 3 
C) 18 
D) 7 
E) 5

Question 13

Identify the correct values for a 1s 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 = -1,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 = -1,ml = -2

Question 14

For a hydrogen atom,which electronic transition would result in the emission of a photon with the highest energy?

Accepted Answer

A) 2s → 3p 
B) 2p → 6d 
C) 6p → 4s 
D) 7f → 5d 
A) 2s → 3p 
B) 2p → 6d 
C) 6p → 4s 
D) 7f → 5d

Question 15

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

Accepted Answer

A) 2p 
B) 4s 
C) 2s 
D) 5d 
E) 3p 
A) 2p 
B) 4s 
C) 2s 
D) 5d 
E) 3p

Question 16

What is the maximum number of f orbitals that are possible in the same level?

Accepted Answer

A) 1 
B) 3 
C) 7 
D) 5 
E) 9 
A) 1 
B) 3 
C) 7 
D) 5 
E) 9

Question 17

Choose the ground-state electron configuration for Cr3+.

Accepted Answer

A) [Ar]4s13d2 
B) [Ar] 
C) [Ar]4s23d6 
D) [Ar]3d3 
E) [Ar]4s23d1 
A) [Ar]4s13d2 
B) [Ar] 
C) [Ar]4s23d6 
D) [Ar]3d3 
E) [Ar]4s23d1

Question 18

The vertical height of a wave is called

Accepted Answer

A) wavelength. 
B) amplitude. 
C) frequency. 
D) area. 
E) median. 
A) wavelength. 
B) amplitude. 
C) frequency. 
D) area. 
E) median.

Question 19

Calculate the wavelength of a baseball (m = 155 g)moving at 32.5 m s-1.

Accepted Answer

A) 7.60 × 10-36 m 
B) 1.32 × 10-34 m 
C) 2.15 × 10-32 m 
D) 2.68 × 10-34 m 
E) 3.57 × 10-32 m 
A) 7.60 × 10-36 m 
B) 1.32 × 10-34 m 
C) 2.15 × 10-32 m 
D) 2.68 × 10-34 m 
E) 3.57 × 10-32 m

Question 20

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

Exam 7: The Quantum-Mechanical Model of the Atom

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

Calculate the energy of an electron in the orbital n = 6 of a hydrogen atom.

Calculate the energy of the green light emitted,per photon,by a mercury lamp with a frequency of 5.49 × 1014 Hz.

In which orbital below would an electron (on average)be farthest from the nucleus?

An electron ends in orbital n = 4 after a hydrogen atom absorbs a photon with a wavelength of 486 nm.Calculate the initial orbital,ni.

An electron initially in the n = 2 orbital of a hydrogen atom absorbs a photon with a wavelength of 656 nm.Calculate the final orbital,nf.

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

How many photons are contained in a burst of yellow light (589 nm)from a sodium lamp that contains 609 kJ of energy?

Each of the following sets of quantum numbers is supposed to specify an orbital.Choose the one set of quantum numbers that does not contain an error.

Give the ground-state electron configuration for Cd+2.

Identify the colour that has a wavelength of 460 nm.

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

Identify the correct values for a 1s sublevel.

For a hydrogen atom,which electronic transition would result in the emission of a photon with the highest energy?

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

What is the maximum number of f orbitals that are possible in the same level?

Choose the ground-state electron configuration for Cr3+.

The vertical height of a wave is called

Calculate the wavelength of a baseball (m = 155 g)moving at 32.5 m s-1.

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

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 Metallurgy

Transition Metals and Coordination Compounds

Filters

Calculate the energy of the green light emitted,per photon,by a mercury lamp with a frequency of 5.49 × 10¹⁴ Hz.

An electron ends in orbital n = 4 after a hydrogen atom absorbs a photon with a wavelength of 486 nm.Calculate the initial orbital,n_i.

An electron initially in the n = 2 orbital of a hydrogen atom absorbs a photon with a wavelength of 656 nm.Calculate the final orbital,n_f.

Give the ground-state electron configuration for Cd⁺².

Choose the ground-state electron configuration for Cr³⁺.

Calculate the wavelength of a baseball (m = 155 g)moving at 32.5 m s^-1.