Question 1

Which of the following types of electromagnetic radiation has the lowest frequency?

Accepted Answer

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

Question 2

Identify the ground-state electron configuration for Rb+.

Accepted Answer

A) [Ar]4s24p6 
B) [Kr]5s1 
C) [Ar]4s23d104p6 
D) [Kr]5s2 
E) [Kr]5s24d2 
A) [Ar]4s24p6 
B) [Kr]5s1 
C) [Ar]4s23d104p6 
D) [Kr]5s2 
E) [Kr]5s24d2 C

Question 3

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

Question 4

Which of the following occurs as the energy of a photon increases?

Accepted Answer

A) The frequency decreases. 
B) The speed increases. 
C) The wavelength increases. 
D) The wavelength gets shorter. 
A) The frequency decreases. 
B) The speed increases. 
C) The wavelength increases. 
D) The wavelength gets shorter.

Question 5

How much energy (in kJ)is required to ionize 2.78 moles of hydrogen atoms?

Accepted Answer

A) 2.74 × 103 kJ 
B) 4.72 × 103 kJ 
C) 1.66 × 103 kJ 
D) 3.65 × 103 kJ 
E) 5.89 × 103 kJ 
A) 2.74 × 103 kJ 
B) 4.72 × 103 kJ 
C) 1.66 × 103 kJ 
D) 3.65 × 103 kJ 
E) 5.89 × 103 kJ

Question 6

What are the possible values of n and ml for an electron in a 3d orbital?

Accepted Answer

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

Question 7

Calculate the de Broglie wavelength of an egg with a mass of 60 g travelling at 32.18 m s-1.

Accepted Answer

A) 5.0 × 10-34 m 
B) 2.8 × 10-34 m 
C) 4.9 × 10-34 m 
D) 1.2 × 10-34 m 
E) 3.4 × 10-34 m 
A) 5.0 × 10-34 m 
B) 2.8 × 10-34 m 
C) 4.9 × 10-34 m 
D) 1.2 × 10-34 m 
E) 3.4 × 10-34 m

Question 8

Determine the end (final)value of n in a hydrogen atom transition if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10-18 J.

Accepted Answer

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

Question 9

Food can be cooked by ________ 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 10

Choose the transition (in a hydrogen atom)below which represents the absorption of the shortest wavelength photon.

Accepted Answer

A) n = 1 to n = 2 
B) n = 2 to n = 3 
C) n = 4 to n = 5 
D) n = 6 to n = 3 
E) n = 3 to n = 1 
A) n = 1 to n = 2 
B) n = 2 to n = 3 
C) n = 4 to n = 5 
D) n = 6 to n = 3 
E) n = 3 to n = 1

Question 11

How many of the following species are paramagnetic? 
Sc3+ $\quad$Br- $\quad$Mg2+ $\quad$Se

Accepted Answer

A) 0 
B) 2 
C) 1 
D) 4 
E) 3 
A) 0 
B) 2 
C) 1 
D) 4 
E) 3

Question 12

What is the maximum number of p 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 13

Give the number of core electrons for Br-.

Accepted Answer

A) 35 
B) 18 
C) 30 
D) 40 
E) 28 
A) 35 
B) 18 
C) 30 
D) 40 
E) 28

Question 14

Define constructive interference.

Accepted Answer

Waves comb

Question 15

What is the maximum number of s 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 16

How many different values of ml are possible in the 2p sublevel?

Accepted Answer

A) 2 
B) 1 
C) 3 
D) 5 
E) 7 
A) 2 
B) 1 
C) 3 
D) 5 
E) 7

Question 17

The number of cycles that pass through a stationary point per unit time 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 18

Identify the correct values for a 3p 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 19

Choose the ground-state electron configuration for Zn2+.

Accepted Answer

A) [Ar]4s23d8 
B) [Ar]3d10 
C) [Ar]4s23d6 
D) [Ar] 
E) [Ar]3d8 
A) [Ar]4s23d8 
B) [Ar]3d10 
C) [Ar]4s23d6 
D) [Ar] 
E) [Ar]3d8

Question 20

Each of the following sets of quantum numbers is supposed to specify an orbital.Which of the following sets of quantum numbers contains an error?

Accepted Answer

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

Exam 7: The Quantum-Mechanical Model of the Atom

Which of the following types of electromagnetic radiation has the lowest frequency?

Identify the ground-state electron configuration for Rb+.

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.

Which of the following occurs as the energy of a photon increases?

How much energy (in kJ)is required to ionize 2.78 moles of hydrogen atoms?

What are the possible values of n and ml for an electron in a 3d orbital?

Calculate the de Broglie wavelength of an egg with a mass of 60 g travelling at 32.18 m s-1.

Determine the end (final)value of n in a hydrogen atom transition if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10-18 J.

Food can be cooked by ________ radiation.

Choose the transition (in a hydrogen atom)below which represents the absorption of the shortest wavelength photon.

How many of the following species are paramagnetic? Sc3+ \quad Br- \quad Mg2+ \quad Se

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

Give the number of core electrons for Br-.

Define constructive interference.

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

How many different values of ml are possible in the 2p sublevel?

The number of cycles that pass through a stationary point per unit time is called

Identify the correct values for a 3p sublevel.

Choose the ground-state electron configuration for Zn2+.

Each of the following sets of quantum numbers is supposed to specify an orbital.Which of the following sets of quantum numbers contains an error?

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

Identify the ground-state electron configuration for Rb⁺.

What are the possible values of n and m_l for an electron in a 3d orbital?

Calculate the de Broglie wavelength of an egg with a mass of 60 g travelling at 32.18 m s^-1.

Determine the end (final)value of n in a hydrogen atom transition if the electron starts in n = 1 and the atom absorbs a photon of light with an energy of 2.044 × 10^-18 J.

How many of the following species are paramagnetic? Sc³⁺ $\quad$ Br^- $\quad$ Mg²⁺ $\quad$ Se

Give the number of core electrons for Br^-.

How many different values of m_l are possible in the 2p sublevel?

Choose the ground-state electron configuration for Zn²⁺.