Question 1

Xenon can form compounds with fluorine.

Accepted Answer

A) True 
 B)False  True

Question 2

Ca reacts with element X to form an ionic compound with the formula CaX. Al will react with X to form ________.

Accepted Answer

A) AlX2 
B) AlX 
C) Al2X3 
D) Al3X2 
E) Al3X 
A) AlX2 
B) AlX 
C) Al2X3 
D) Al3X2 
E) Al3X C

Question 3

The oxide of which element below can react with hydrochloric acid?

Accepted Answer

A) sulfur 
B) selenium 
C) nitrogen 
D) sodium 
E) carbon 
A) sulfur 
B) selenium 
C) nitrogen 
D) sodium 
E) carbon D

Question 4

The noble gases were, until relatively recently, thought to be entirely unreactive. Experiments in the early 1960s showed that Xe could, in fact, form compounds with fluorine. The formation of compounds consisting of Xe is made possible by ________.

Accepted Answer

A) the availability of xenon atoms 
B) xenon's noble gas electron configuration 
C) the stability of xenon atoms 
D) xenon's relatively low ionization energy 
E) xenon's relatively low electron affinity 
A) the availability of xenon atoms 
B) xenon's noble gas electron configuration 
C) the stability of xenon atoms 
D) xenon's relatively low ionization energy 
E) xenon's relatively low electron affinity

Question 5

In which of the following atoms is the 3s orbital closest to the nucleus?

Accepted Answer

A) S 
B) Po 
C) Te 
D) Se 
E) P 
A) S 
B) Po 
C) Te 
D) Se 
E) P

Question 6

Of the halogens, which are gases at room temperature and atmospheric pressure?

Accepted Answer

A) fluorine, bromine, and iodine 
B) fluorine, chlorine, and bromine 
C) fluorine, chlorine, bromine, and iodine 
D) fluorine, chlorine, and iodine 
E) fluorine and chlorine 
A) fluorine, bromine, and iodine 
B) fluorine, chlorine, and bromine 
C) fluorine, chlorine, bromine, and iodine 
D) fluorine, chlorine, and iodine 
E) fluorine and chlorine

Question 7

________ is isoelectronic with krypton.

Accepted Answer

A) Se2- 
B) Se3- 
C) Br 
D) Se2+ 
E) Te2- 
A) Se2- 
B) Se3- 
C) Br 
D) Se2+ 
E) Te2-

Question 8

What is the coefficient of M when the following equation is completed and balanced if M is an alkali metal? M (s) + H2O (l) →

Accepted Answer

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

Question 9

Which one of the following is a metalloid?

Accepted Answer

A) Si 
B) S 
C) Cl 
D) In 
E) Li 
A) Si 
B) S 
C) Cl 
D) In 
E) Li

Question 10

Of the elements below, ________ is the most metallic.

Accepted Answer

A) sodium 
B) barium 
C) magnesium 
D) calcium 
E) cesium 
A) sodium 
B) barium 
C) magnesium 
D) calcium 
E) cesium

Question 11

Which one of the following has the smallest radius?

Accepted Answer

A) Na 
B) Al 
C) K 
D) Ca 
A) Na 
B) Al 
C) K 
D) Ca

Question 12

Which of the following is an isoelectronic series?

Accepted Answer

A) B5-, Si4-, As3-, Te2- 
B) F-, Cl-, Br-, I- 
C) S, Cl, Ar, K 
D) Si2-, P2-, S2-, Cl2- 
E) O2-, F-, Ne, Na+ 
A) B5-, Si4-, As3-, Te2- 
B) F-, Cl-, Br-, I- 
C) S, Cl, Ar, K 
D) Si2-, P2-, S2-, Cl2- 
E) O2-, F-, Ne, Na+

Question 13

________ is isoelectronic with helium.

Accepted Answer

A) H- 
B) H+ 
C) H 
D) B3- 
E) N3- 
A) H- 
B) H+ 
C) H 
D) B3- 
E) N3-

Question 14

________ is credited with developing the concept of atomic numbers.

Accepted Answer

A) Dmitri Mendeleev 
B) Lothar Meyer 
C) Henry Moseley 
D) Ernest Rutherford 
E) Michael Faraday 
A) Dmitri Mendeleev 
B) Lothar Meyer 
C) Henry Moseley 
D) Ernest Rutherford 
E) Michael Faraday

Question 15

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

Accepted Answer

A) O, S, Se 
B) N, O, F 
C) Na, Mg, K 
D) S, Se, Si 
E) Ne, Na, Mg 
A) O, S, Se 
B) N, O, F 
C) Na, Mg, K 
D) S, Se, Si 
E) Ne, Na, Mg

Question 16

Hydrogen is unique among the elements because ________. 1. It is not really a member of any particular group.
2. Its electron is not at all shielded from its nucleus.
3. It is the lightest element.
4. It is the only element to exist at room temperature as a diatomic gas.
5. It exhibits some chemical properties similar to those of groups 1A and 7A.

Accepted Answer

A) 1, 2, 3, 5 
B) 1, 2, 3, 4, 5 
C) 1, 4, 5 
D) 3, 4 
E) 2, 3, 4, 5 
A) 1, 2, 3, 5 
B) 1, 2, 3, 4, 5 
C) 1, 4, 5 
D) 3, 4 
E) 2, 3, 4, 5

Question 17

Element M reacts with oxygen to form an oxide with the formula M2O. When M2O is dissolved in water, the resulting solution is basic. Element M could be ________.

Accepted Answer

A) calcium 
B) bromine 
C) oxygen 
D) carbon 
E) nitrogen 
A) calcium 
B) bromine 
C) oxygen 
D) carbon 
E) nitrogen

Question 18

Consider the general valence electron configuration of ns2np5 and the following statements: (i)Elements with this electron configuration are expected to form -1 anions.
(ii)Elements with this electron configuration are expected to have large
Positive electron affinities.
(iii)Elements with this electron configuration are nonmetals.
(iv)Elements with this electron configuration form acidic oxides.
Which statements are true?

Accepted Answer

A) (i)and (ii) 
B) (i), (ii), and (iii) 
C) (ii)and (iii) 
D) (i), (iii,)and (iv) 
E) All statements are true. 
A) (i)and (ii) 
B) (i), (ii), and (iii) 
C) (ii)and (iii) 
D) (i), (iii,)and (iv) 
E) All statements are true.

Question 19

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

Question 20

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

Exam 7: Periodic Properties of the Elements

Xenon can form compounds with fluorine.

Ca reacts with element X to form an ionic compound with the formula CaX. Al will react with X to form ________.

The oxide of which element below can react with hydrochloric acid?

The noble gases were, until relatively recently, thought to be entirely unreactive. Experiments in the early 1960s showed that Xe could, in fact, form compounds with fluorine. The formation of compounds consisting of Xe is made possible by ________.

In which of the following atoms is the 3s orbital closest to the nucleus?

Of the halogens, which are gases at room temperature and atmospheric pressure?

________ is isoelectronic with krypton.

What is the coefficient of M when the following equation is completed and balanced if M is an alkali metal? M (s) + H2O (l) →

Which one of the following is a metalloid?

Of the elements below, ________ is the most metallic.

Which one of the following has the smallest radius?

Which of the following is an isoelectronic series?

________ is isoelectronic with helium.

________ is credited with developing the concept of atomic numbers.

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

Element M reacts with oxygen to form an oxide with the formula M2O. When M2O is dissolved in water, the resulting solution is basic. Element M could be ________.

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

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

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

Filters

What is the coefficient of M when the following equation is completed and balanced if M is an alkali metal? M (s) + H₂O (l) →

Element M reacts with oxygen to form an oxide with the formula M₂O. When M₂O is dissolved in water, the resulting solution is basic. Element M could be ________.