Question 1

Which element has four completely filled s sublevels, and three d electrons in its ground-state electron configuration?

Accepted Answer

A) V 
B) Cr 
C) Nb 
D) Ti 
E) Sc 
A) V 
B) Cr 
C) Nb 
D) Ti 
E) Sc

Question 2

The green line observed in the line spectrum for hydrogen has a wavelength of 486 nm. What is the frequency of this light in hertz (s-1)?

Accepted Answer

A) 1.46 × 102 s−1 
B) 6.17 × 105 s-1 
C) 6.17 × 1014 s-1 
D) 1.62 × 10-6 s-1 
E) 1.62 × 10-13 s-1 
A) 1.46 × 102 s−1 
B) 6.17 × 105 s-1 
C) 6.17 × 1014 s-1 
D) 1.62 × 10-6 s-1 
E) 1.62 × 10-13 s-1

Question 3

Elements that have only one electron in the highest-energy s sublevel in their ground state are called ________.

Accepted Answer

A) alkali metals 
B) alkaline earth metals 
C) halogens 
D) noble gases 
E) transition metals 
A) alkali metals 
B) alkaline earth metals 
C) halogens 
D) noble gases 
E) transition metals

Question 4

What is the ground-state electron configuration for the oxide ion?

Accepted Answer

A) 1s22s22p2 
B) 1s22s22p4 
C) 1s22s22p6 
D) 1s22p2 
E) 1s22p8 
A) 1s22s22p2 
B) 1s22s22p4 
C) 1s22s22p6 
D) 1s22p2 
E) 1s22p8

Question 5

How many unpaired electrons are in the orbital diagram for phosphorus?

Accepted Answer

A) 0 
B) 1 
C) 2 
D) 3 
E) 6 
A) 0 
B) 1 
C) 2 
D) 3 
E) 6

Question 6

Which ion is expected to be the largest?

Accepted Answer

A) Ca2+ 
B) S2− 
C) K+ 
D) Cl− 
E) All these ions have the same size. 
A) Ca2+ 
B) S2− 
C) K+ 
D) Cl− 
E) All these ions have the same size.

Question 7

Rank the following elements in order of increasing ionization energy: P, F, Cs, Mg

Accepted Answer

A) Cs < Mg < F < P 
B) Cs < F < Mg < P 
C) F < P < Mg < Cs 
D) P < Mg < F < Cs 
E) Cs < Mg < P < F 
A) Cs < Mg < F < P 
B) Cs < F < Mg < P 
C) F < P < Mg < Cs 
D) P < Mg < F < Cs 
E) Cs < Mg < P < F

Question 8

Wavelength is inversely proportional to energy.

Accepted Answer

A) True 
 B)False

Question 9

Which of the following statements regarding valence electrons is incorrect?

Accepted Answer

A) Main-group elements in the same group have the same number of valence electrons. 
B) The group numbers of the main-group elements are the sum of the number of s and p valence electrons. 
C) The elements in the s-block can have up to two valence electrons. 
D) An element in Group IVA will have six valence electrons. 
E) The electron configuration for nitrogen is 1s22s22p3, so it has five valence electrons. 
A) Main-group elements in the same group have the same number of valence electrons. 
B) The group numbers of the main-group elements are the sum of the number of s and p valence electrons. 
C) The elements in the s-block can have up to two valence electrons. 
D) An element in Group IVA will have six valence electrons. 
E) The electron configuration for nitrogen is 1s22s22p3, so it has five valence electrons.

Question 10

The type of radiation with wavelengths just slightly longer than red light is infrared.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following is the correct ground state electron configuration for chlorine?

Accepted Answer

A) 1s22s22p5 
B) 1s22s22p63s24p5 
C) 1s22s22p63s23p5 
D) 1s22s22p63s23p6 
E) 1s22s22p63s24p6 
A) 1s22s22p5 
B) 1s22s22p63s24p5 
C) 1s22s22p63s23p5 
D) 1s22s22p63s23p6 
E) 1s22s22p63s24p6

Question 12

The abbreviated electron configuration [Ar] applies to all of the following species except:

Accepted Answer

A) Cl− 
B) P3− 
C) O2− 
D) Ca2+ 
E) K+ 
A) Cl− 
B) P3− 
C) O2− 
D) Ca2+ 
E) K+

Question 13

The type of radiation with wavelengths just slightly shorter than violet is superviolet.

Accepted Answer

A) True 
 B)False

Which element has four completely filled s sublevels, and three d electrons in its ground-state electron configuration?

The green line observed in the line spectrum for hydrogen has a wavelength of 486 nm. What is the frequency of this light in hertz (s^-1)?

Elements that have only one electron in the highest-energy s sublevel in their ground state are called ________.

What is the ground-state electron configuration for the oxide ion?

How many unpaired electrons are in the orbital diagram for phosphorus?

Which ion is expected to be the largest?

Rank the following elements in order of increasing ionization energy: P, F, Cs, Mg

Wavelength is inversely proportional to energy.

Which of the following statements regarding valence electrons is incorrect?

The type of radiation with wavelengths just slightly longer than red light is infrared.

Which of the following is the correct ground state electron configuration for chlorine?

The abbreviated electron configuration [Ar] applies to all of the following species except:

The type of radiation with wavelengths just slightly shorter than violet is superviolet.

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Quantities in Chemical Reactions

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

Exam 7: Electron Structure of the Atom

Which element has four completely filled s sublevels, and three d electrons in its ground-state electron configuration?

The green line observed in the line spectrum for hydrogen has a wavelength of 486 nm. What is the frequency of this light in hertz (s-1)?

Elements that have only one electron in the highest-energy s sublevel in their ground state are called ________.

What is the ground-state electron configuration for the oxide ion?

How many unpaired electrons are in the orbital diagram for phosphorus?

Which ion is expected to be the largest?

Rank the following elements in order of increasing ionization energy: P, F, Cs, Mg

Wavelength is inversely proportional to energy.

Which of the following statements regarding valence electrons is incorrect?

The type of radiation with wavelengths just slightly longer than red light is infrared.

Which of the following is the correct ground state electron configuration for chlorine?

The abbreviated electron configuration [Ar] applies to all of the following species except:

The type of radiation with wavelengths just slightly shorter than violet is superviolet.

Matter and Energy

Atoms, Ions, and the Periodic Table

Chemical Compounds

Chemical Composition

Chemical Reactions and Equations

Quantities in Chemical Reactions

Chemical Bonding

The Gaseous State

The Liquid and Solid States

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Oxidation-Reduction Reactions

Nuclear Chemistry

Organic Chemistry

Biochemistry

Filters

The green line observed in the line spectrum for hydrogen has a wavelength of 486 nm. What is the frequency of this light in hertz (s^-1)?