Question 1

Which of the following traits characterizes the alkali metals?

Accepted Answer

A) very high melting point 
B) existence as diatomic molecules 
C) formation of dianions 
D) the lowest first ionization energies in a period 
E) the smallest atomic radius in a period 
A) very high melting point 
B) existence as diatomic molecules 
C) formation of dianions 
D) the lowest first ionization energies in a period 
E) the smallest atomic radius in a period D

Question 2

The atomic radius of iodine is one-half the distance separating the iodine nuclei.

Accepted Answer

A) True 
 B)False  True

Question 3

The acidity of carbonated water is due to the __________.

Accepted Answer

A) presence of sulfur 
B) reaction of CO2 and H2O 
C) addition of acid 
D) nonmetal oxides 
E) none of the above 
A) presence of sulfur 
B) reaction of CO2 and H2O 
C) addition of acid 
D) nonmetal oxides 
E) none of the above B

Question 4

Which periodic table group contains only metals?

Accepted Answer

A) 8A 
B) 2A 
C) 6A 
D) 7A 
E) 5A 
A) 8A 
B) 2A 
C) 6A 
D) 7A 
E) 5A

Question 5

Astatine has a __________ density and a __________ atomic radius compared to iodine.

Accepted Answer

A) greater; greater 
B) smaller; greater 
C) smaller; smaller 
D) greater; smaller 
E) equal; equal 
A) greater; greater 
B) smaller; greater 
C) smaller; smaller 
D) greater; smaller 
E) equal; equal

Question 6

The alkali metal that is naturally radioactive is __________.

Accepted Answer

A) rubidium 
B) cesium 
C) lithium 
D) francium 
E) sodium 
A) rubidium 
B) cesium 
C) lithium 
D) francium 
E) sodium

Question 7

Write the balanced equation for the reaction of elemental fluorine with liquid water.

Accepted Answer

2 H₂O (l)+

Question 8

Which element is solid at room temperature?

Accepted Answer

A) Cl2 
B) F2 
C) Br2 
D) I2 
E) H2 
A) Cl2 
B) F2 
C) Br2 
D) I2 
E) H2

Question 9

Which one of the following is a metal?

Accepted Answer

A) Ge 
B) S 
C) Br 
D) Pb 
E) C 
A) Ge 
B) S 
C) Br 
D) Pb 
E) C

Question 10

The element in the periodic table that looks like a metal, is a poor thermal conductor, and acts as an electrical semiconductor is __________.

Accepted Answer

A) Sn 
B) B 
C) As 
D) Si 
E) Ge 
A) Sn 
B) B 
C) As 
D) Si 
E) Ge

Question 11

The substance __________ is always produced when an active metal reacts with water.

Accepted Answer

A) NaOH 
B) H2O 
C) CO2 
D) H2 
E) O2 
A) NaOH 
B) H2O 
C) CO2 
D) H2 
E) O2

Question 12

Of the following metals, __________ exhibits multiple oxidation states.

Accepted Answer

A) Al 
B) Rb 
C) Mg 
D) Ni 
E) Cs 
A) Al 
B) Rb 
C) Mg 
D) Ni 
E) Cs

Question 13

Of the alkaline earth metals, which two elements are the least reactive?

Accepted Answer

The answer of Of the alkaline earth metals, which two...

Question 14

List seven nonmetals that exist as diatomic molecules in their elemental forms.

Accepted Answer

hydrogen, oxygen, ni

Question 15

Oxides of the active metals combine with acid to form __________.

Accepted Answer

A) hydrogen gas 
B) metal hydrides 
C) water and a salt 
D) oxygen gas 
E) metal hydroxides 
A) hydrogen gas 
B) metal hydrides 
C) water and a salt 
D) oxygen gas 
E) metal hydroxides

Question 16

The element(s)__________ could be used to produce a red or crimson color in fireworks.

Accepted Answer

A) Mg or Ba 
B) Sr 
C) Ca, Sr, or Li 
D) Ba 
E) Na or K 
A) Mg or Ba 
B) Sr 
C) Ca, Sr, or Li 
D) Ba 
E) Na or K

Question 17

Write the balanced reaction between zinc oxide and sulfuric acid.

Accepted Answer

ZnO + H₂SO₄

Question 18

In which orbital does an electron in a lead atom experience the greatest effective nuclear charge?

Accepted Answer

A) 1s 
B) 4p 
C) 5s 
D) 6s 
E) 5d 
A) 1s 
B) 4p 
C) 5s 
D) 6s 
E) 5d

Question 19

The element phosphorus exists in two forms in nature called white phosphorus and red phosphorus. These two forms are examples of __________.

Accepted Answer

A) isotopes 
B) allotropes 
C) oxidation 
D) metalloids 
E) noble gases 
A) isotopes 
B) allotropes 
C) oxidation 
D) metalloids 
E) noble gases

Question 20

Which isoelectronic series is correctly arranged in order of increasing radius?

Accepted Answer

A) K+ 2+ - 
B) Cl- + 2+ 
C) Ca2+ + - 
D) Ca2+ + - 
E) Ca2+ + - < Ar 
A) K+ 2+ - 
B) Cl- + 2+ 
C) Ca2+ + - 
D) Ca2+ + - 
E) Ca2+ + - < Ar

Exam 7: Periodic Properties of the Elements

Which of the following traits characterizes the alkali metals?

The atomic radius of iodine is one-half the distance separating the iodine nuclei.

The acidity of carbonated water is due to the __________.

Which periodic table group contains only metals?

Astatine has a __________ density and a __________ atomic radius compared to iodine.

The alkali metal that is naturally radioactive is __________.

Write the balanced equation for the reaction of elemental fluorine with liquid water.

Which element is solid at room temperature?

Which one of the following is a metal?

The element in the periodic table that looks like a metal, is a poor thermal conductor, and acts as an electrical semiconductor is __________.

The substance __________ is always produced when an active metal reacts with water.

Of the following metals, __________ exhibits multiple oxidation states.

Of the alkaline earth metals, which two elements are the least reactive?

List seven nonmetals that exist as diatomic molecules in their elemental forms.

Oxides of the active metals combine with acid to form __________.

The element(s)__________ could be used to produce a red or crimson color in fireworks.

Write the balanced reaction between zinc oxide and sulfuric acid.

In which orbital does an electron in a lead atom experience the greatest effective nuclear charge?

The element phosphorus exists in two forms in nature called white phosphorus and red phosphorus. These two forms are examples of __________.

Which isoelectronic series is correctly arranged in order of increasing radius?

Introduction: Matter and Measurement

Atoms, Molecules, and Ions

Stoichiometry: Calculations With Chemical Formulas and Equations

Aqueous Reactions and Solution Stoichiometry

Thermochemistry

Electronic Structure of Atoms

Basic Concepts of Chemical Bonding

Molecular Geometry and Bonding Theories

Gases

Liquids and Intermolecular Forces

Solids and Modern Materials

Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acid-Base Equilibria

Additional Aspects of Aqueous Equilibria

Chemistry of the Environment

Chemical Thermodynamics

Electrochemistry

Nuclear Chemistry

Chemistry of the Nonmetals

Transition Metals and Coordination Chemistry

The Chemistry of Life: Organic and Biological Chemistry

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Astatine has a density and a atomic radius compared to iodine.