Question 1

Which group 6A element is a metal?

Accepted Answer

A) tellurium and polonium 
B) sulfur 
C) selenium 
D) tellurium 
E) polonium 
A) tellurium and polonium 
B) sulfur 
C) selenium 
D) tellurium 
E) polonium

Question 2

Which equation correctly represents the third ionization of aluminum?

Accepted Answer

A) Al2+(g)→ Al3+(g)+ e- 
B) Al(g)→ Al+(g)+ e- 
C) Al2-(g)→ Al3-(g)+ e- 
D) Al3+(g)+ e- → Al2+(g) 
E) Al+(g)→ Al2+(g)+ e- 
A) Al2+(g)→ Al3+(g)+ e- 
B) Al(g)→ Al+(g)+ e- 
C) Al2-(g)→ Al3-(g)+ e- 
D) Al3+(g)+ e- → Al2+(g) 
E) Al+(g)→ Al2+(g)+ e-

Question 3

Write a balanced equation for the reaction of elemental sulfur and oxygen gas.

Accepted Answer

S (s)+ O₂ (

Question 4

A tin atom has 50 electrons.Electrons in the ________ subshell experience the lowest effective nuclear charge.

Accepted Answer

A) 1s 
B) 3p 
C) 3d 
D) 5s 
E) 5p 
A) 1s 
B) 3p 
C) 3d 
D) 5s 
E) 5p

Question 5

The atomic radius of main-group elements generally increases down a group because ________.

Accepted Answer

A) effective nuclear charge increases down a group 
B) effective nuclear charge decreases down a group 
C) effective nuclear charge zigzags down a group 
D) the principal quantum number of the valence orbitals increases 
E) both effective nuclear charge increases down a group and the principal quantum number of the valence orbitals increases 
A) effective nuclear charge increases down a group 
B) effective nuclear charge decreases down a group 
C) effective nuclear charge zigzags down a group 
D) the principal quantum number of the valence orbitals increases 
E) both effective nuclear charge increases down a group and the principal quantum number of the valence orbitals increases

Question 6

Of the hydrogen halides,only ________ is a weak acid.

Accepted Answer

A) HCl (aq) 
B) HBr (aq) 
C) HF (aq) 
D) HI (aq) 
E) They are all weak acids. 
A) HCl (aq) 
B) HBr (aq) 
C) HF (aq) 
D) HI (aq) 
E) They are all weak acids.

Question 7

In the generation of most anions,the energy change (kJ/mol)that ________ an electron is ________.

Accepted Answer

A) removes, positive 
B) adds, positive 
C) removes, negative 
D) adds, negative 
E) None of the above is correct. 
A) removes, positive 
B) adds, positive 
C) removes, negative 
D) adds, negative 
E) None of the above is correct.

Question 8

Of the elements below,________ is the most metallic.

Accepted Answer

A) Sn 
B) P 
C) Br 
D) Rn 
E) As 
A) Sn 
B) P 
C) Br 
D) Rn 
E) As

Question 9

Which group in the periodic table has the lowest first ionization energy?

Accepted Answer

A) VIA 
B) IA 
C) IIIA 
D) IIA 
E) VIIA 
A) VIA 
B) IA 
C) IIIA 
D) IIA 
E) VIIA

Question 10

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

Accepted Answer

Cl₂ (g)+ H₂O

Question 11

________ have the lowest first ionization energies of the groups listed.

Accepted Answer

A) Alkali metals 
B) Transition elements 
C) Halogens 
D) Alkaline earth metals 
E) Noble gases 
A) Alkali metals 
B) Transition elements 
C) Halogens 
D) Alkaline earth metals 
E) Noble gases

Question 12

The ________ have the most negative electron affinities.

Accepted Answer

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

Question 13

Which of the following has the largest second ionization energy?

Accepted Answer

A) Si 
B) Mg 
C) Al 
D) Na 
E) P 
A) Si 
B) Mg 
C) Al 
D) Na 
E) P

Question 14

Which of the following statements is not true for oxygen?

Accepted Answer

A) The most stable allotrope of oxygen is O2. 
B) The chemical formula of ozone is O3. 
C) Dry air is about 79% oxygen. 
D) Oxygen forms peroxide and superoxide anions. 
E) Oxygen is a colorless gas at room temperature. 
A) The most stable allotrope of oxygen is O2. 
B) The chemical formula of ozone is O3. 
C) Dry air is about 79% oxygen. 
D) Oxygen forms peroxide and superoxide anions. 
E) Oxygen is a colorless gas at room temperature.

Question 15

The electron configuration of the atom with the most negative electron affinity is ________.

Accepted Answer

A) (i) 
B) (ii) 
C) (iii) 
D) (iv) 
E) (v) 
A) (i) 
B) (ii) 
C) (iii) 
D) (iv) 
E) (v)

Question 16

Which alkaline earth metal will not react with liquid water or with steam?

Accepted Answer

A) Be 
B) Mg 
C) Ca 
D) Ba 
E) They all react with liquid water and with steam. 
A) Be 
B) Mg 
C) Ca 
D) Ba 
E) They all react with liquid water and with steam.

Question 17

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

Accepted Answer

hydrogen,oxygen,nitr

Question 18

When dissolved in water,________ produces a basic solution.

Accepted Answer

A) SO2 
B) Rb2O 
C) OBr2 
D) ZnCl2 
E) N2 
A) SO2 
B) Rb2O 
C) OBr2 
D) ZnCl2 
E) N2

Question 19

Electrons in the 1s subshell are much closer to the nucleus in Ar than in He due to the larger ________ in Ar.

Accepted Answer

A) nuclear charge 
B) paramagnetism 
C) diamagnetism 
D) Hund's rule 
E) azimuthal quantum number 
A) nuclear charge 
B) paramagnetism 
C) diamagnetism 
D) Hund's rule 
E) azimuthal quantum number

Question 20

In which set of elements would all members be expected to have very similar chemical properties?

Accepted Answer

A) P, Se, I 
B) Cl, Br, Na 
C) Si, As, Te 
D) Ne, Na, Mg 
E) Br, I, At 
A) P, Se, I 
B) Cl, Br, Na 
C) Si, As, Te 
D) Ne, Na, Mg 
E) Br, I, At

Exam 7: Periodic Properties of the Elements

Which group 6A element is a metal?

Which equation correctly represents the third ionization of aluminum?

Write a balanced equation for the reaction of elemental sulfur and oxygen gas.

A tin atom has 50 electrons.Electrons in the ________ subshell experience the lowest effective nuclear charge.

The atomic radius of main-group elements generally increases down a group because ________.

Of the hydrogen halides,only ________ is a weak acid.

In the generation of most anions,the energy change (kJ/mol)that ________ an electron is ________.

Of the elements below,________ is the most metallic.

Which group in the periodic table has the lowest first ionization energy?

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

________ have the lowest first ionization energies of the groups listed.

The ________ have the most negative electron affinities.

Which of the following has the largest second ionization energy?

Which of the following statements is not true for oxygen?

The electron configuration of the atom with the most negative electron affinity is ________.

Which alkaline earth metal will not react with liquid water or with steam?

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

When dissolved in water,________ produces a basic solution.

Electrons in the 1s subshell are much closer to the nucleus in Ar than in He due to the larger ________ in Ar.

In which set of elements would all members be expected to have very similar chemical properties?

Introduction: Matter, energy, and Measurement

Atoms, molecules, and Ions

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

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

Filters

In the generation of most anions,the energy change (kJ/mol)that an electron is .