Question 1

Which of the following atoms has the greatest electron affinity (largest positive value)?

Accepted Answer

A) S 
B) P 
C) Ga 
D) Li 
E) Br 
A) S 
B) P 
C) Ga 
D) Li 
E) Br

Question 2

What is the difference between a calcium atom and a calcium ion?

Accepted Answer

A calcium atom has t

Question 3

Write the ground-state electron configuration for O2-.

Accepted Answer

Question 4

Write the ground-state electron configuration for S2-.

Accepted Answer

Question 5

Write the ground-state electron configuration for Cr3+.

Accepted Answer

Question 6

Which of the following is a basic oxide?

Accepted Answer

A) CO2 
B) CaO 
C) SO2 
D) H2O 
E) NO2 
A) CO2 
B) CaO 
C) SO2 
D) H2O 
E) NO2

Question 7

For Mg atoms a very large jump in the magnitudes of the ionization energies will occur between the second and the third ionization energies.

Accepted Answer

A) True 
 B)False

Question 8

The following successive ionization energies correspond to an element in the third row of the periodic table: I1 = 786.3 kJ/mol, I2 =1,580 kJ/mol, I3= 3,230 kJ/mol, I4 = 4,360 kJ/mol, I5 = 16,000, and I6 = 20,000 kJ/mol. Based on this pattern of ionization energies, identify the element.

Accepted Answer

Question 9

Consider the element with the electron configuration [Kr]5s24d105p5. This element is

Accepted Answer

A) a representative element. 
B) a transition metal. 
C) an alkali metal. 
D) an actinide element. 
E) a noble gas. 
A) a representative element. 
B) a transition metal. 
C) an alkali metal. 
D) an actinide element. 
E) a noble gas.

Question 10

Mendeleev proposed the existence of an unknown element that he called eka-aluminum. This element is now called

Accepted Answer

A) gallium. 
B) silicon. 
C) magnesium. 
D) boron. 
E) germanium. 
A) gallium. 
B) silicon. 
C) magnesium. 
D) boron. 
E) germanium.

Question 11

Write the ground-state electron configuration for Mg2+.

Accepted Answer

Question 12

Which one of the following elements is a transition element?

Accepted Answer

A) Sr 
B) Pb 
C) As 
D) Fe 
E) H 
A) Sr 
B) Pb 
C) As 
D) Fe 
E) H

Question 13

Which one of the following elements forms a stable 2+ cation?

Accepted Answer

A) Kr 
B) I 
C) Se 
D) Al 
E) Ba 
A) Kr 
B) I 
C) Se 
D) Al 
E) Ba

Question 14

The cobalt(III)ion, Co3+, has how many 3d electrons?

Accepted Answer

A) 0 
B) 7 
C) 6 
D) 5 
E) 4 
A) 0 
B) 7 
C) 6 
D) 5 
E) 4

Question 15

Sodium ions are more reactive than sodium atoms.

Accepted Answer

A) True 
 B)False

Question 16

How many 3d electrons does an Fe3+ ion have?

Accepted Answer

A) 9 
B) 6 
C) 5 
D) 4 
E) 3 
A) 9 
B) 6 
C) 5 
D) 4 
E) 3

Question 17

Write the ground-state electron configuration for Ca2+.

Accepted Answer

Question 18

The electron configuration of the outermost electrons of atoms of the halogen group is ns2np7.

Accepted Answer

A) True 
 B)False

Question 19

The electron affinity of fluorine is essentially equal to

Accepted Answer

A) the negative of the ionization energy F. 
B) the ionization energy F-. 
C) the negative of the ionization energy F-. 
D) the ionization energy Ne. 
E) the negative of the ionization energy Ne. 
A) the negative of the ionization energy F. 
B) the ionization energy F-. 
C) the negative of the ionization energy F-. 
D) the ionization energy Ne. 
E) the negative of the ionization energy Ne.

Question 20

The law of octaves was proposed by

Accepted Answer

A) G. N. Lewis. 
B) John Newlands. 
C) Dmitri Mendeleev. 
D) J. J. Thompson. 
E) Ernest Rutherford. 
A) G. N. Lewis. 
B) John Newlands. 
C) Dmitri Mendeleev. 
D) J. J. Thompson. 
E) Ernest Rutherford.

Exam 8: The Periodic Table

Which of the following atoms has the greatest electron affinity (largest positive value)?

What is the difference between a calcium atom and a calcium ion?

Write the ground-state electron configuration for O2-.

Write the ground-state electron configuration for S2-.

Write the ground-state electron configuration for Cr3+.

Which of the following is a basic oxide?

For Mg atoms a very large jump in the magnitudes of the ionization energies will occur between the second and the third ionization energies.

The following successive ionization energies correspond to an element in the third row of the periodic table: I1 = 786.3 kJ/mol, I2 =1,580 kJ/mol, I3= 3,230 kJ/mol, I4 = 4,360 kJ/mol, I5 = 16,000, and I6 = 20,000 kJ/mol. Based on this pattern of ionization energies, identify the element.

Consider the element with the electron configuration [Kr]5s24d105p5. This element is

Mendeleev proposed the existence of an unknown element that he called eka-aluminum. This element is now called

Write the ground-state electron configuration for Mg2+.

Which one of the following elements is a transition element?

Which one of the following elements forms a stable 2+ cation?

The cobalt(III)ion, Co3+, has how many 3d electrons?

Sodium ions are more reactive than sodium atoms.

How many 3d electrons does an Fe3+ ion have?

Write the ground-state electron configuration for Ca2+.

The electron configuration of the outermost electrons of atoms of the halogen group is ns2np7.

The electron affinity of fluorine is essentially equal to

The law of octaves was proposed by

Introduction

Atoms, Molecules, and Ions

Stoichiometry

Reactions in Aqueous Solution

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

Write the ground-state electron configuration for O^2-.

Write the ground-state electron configuration for S^2-.

Write the ground-state electron configuration for Cr³⁺.

The following successive ionization energies correspond to an element in the third row of the periodic table: I₁= 786.3 kJ/mol, I₂=1,580 kJ/mol, I₃= 3,230 kJ/mol, I₄ = 4,360 kJ/mol, I₅ = 16,000, and I₆ = 20,000 kJ/mol. Based on this pattern of ionization energies, identify the element.

Consider the element with the electron configuration [Kr]5s²4d¹⁰5p⁵. This element is

Write the ground-state electron configuration for Mg²⁺.

The cobalt(III)ion, Co³⁺, has how many 3d electrons?

How many 3d electrons does an Fe³⁺ ion have?

Write the ground-state electron configuration for Ca²⁺.

The electron configuration of the outermost electrons of atoms of the halogen group is ns²np⁷.