Question 1

How many protons are there in one atom of 71Ga?

Accepted Answer

A) 40 
B) 70 
C) 71 
D) 31 
E) 13 
A) 40 
B) 70 
C) 71 
D) 31 
E) 13

Question 2

The element X has three naturally occurring isotopes.The isotopic masses (amu)and % abundances of the isotopes are given in the table below.The average atomic mass of the element is ________ amu.

Accepted Answer

A) 161.75 
B) 162.03 
C) 162.35 
D) 163.15 
E) 33.33 
A) 161.75 
B) 162.03 
C) 162.35 
D) 163.15 
E) 33.33

Question 3

An atom of 14C contains ________ electrons.

Accepted Answer

A) 14 
B) 20 
C) 8 
D) 10 
E) 6 
A) 14 
B) 20 
C) 8 
D) 10 
E) 6

Question 4

In the symbol below,X = ________.   X

Accepted Answer

A) Zr 
B) K 
C) Sc 
D) Br 
E) not enough information to determine 
A) Zr 
B) K 
C) Sc 
D) Br 
E) not enough information to determine

Question 5

Aluminum forms an ion with a charge of ________.

Accepted Answer

A) 2+ 
B) 3- 
C) 1+ 
D) 3+ 
E) 1- 
A) 2+ 
B) 3- 
C) 1+ 
D) 3+ 
E) 1-

Question 6

How many neutrons are there in one atom of 184W?

Accepted Answer

A) 74 
B) 112 
C) 258 
D) 110 
E) 184 
A) 74 
B) 112 
C) 258 
D) 110 
E) 184

Question 7

Different isotopes of a particular element contain the same number of ________.

Accepted Answer

A) protons 
B) neutrons 
C) protons and neutrons 
D) protons, neutrons, and electrons 
E) subatomic particles 
A) protons 
B) neutrons 
C) protons and neutrons 
D) protons, neutrons, and electrons 
E) subatomic particles

Question 8

The formula for zinc phosphate is Zn3(PO4)2.What is the formula for cadmium arsenate?

Accepted Answer

A) Cd4(AsO2)3 
B) Cd3(AsO4)2 
C) Cd3(AsO3)4 
D) Cd2(AsO4)3 
E) Cd2(AsO4)4 
A) Cd4(AsO2)3 
B) Cd3(AsO4)2 
C) Cd3(AsO3)4 
D) Cd2(AsO4)3 
E) Cd2(AsO4)4

Question 9

Which one of the following compounds is copper(I)chloride?

Accepted Answer

A) CuCl 
B) CuCl2 
C) Cu2Cl 
D) Cu2Cl3 
E) Cu3Cl2 
A) CuCl 
B) CuCl2 
C) Cu2Cl 
D) Cu2Cl3 
E) Cu3Cl2

Question 10

The correct name for Al2O3 is ________.

Accepted Answer

A) aluminum oxide 
B) dialuminum oxide 
C) dialuminum trioxide 
D) aluminum hydroxide 
E) aluminum trioxide 
A) aluminum oxide 
B) dialuminum oxide 
C) dialuminum trioxide 
D) aluminum hydroxide 
E) aluminum trioxide

Question 11

An element in the upper right corner of the periodic table ________.

Accepted Answer

A) is either a metal or metalloid 
B) is definitely a metal 
C) is either a metalloid or a nonmetal 
D) is definitely a nonmetal 
E) is definitely a metalloid 
A) is either a metal or metalloid 
B) is definitely a metal 
C) is either a metalloid or a nonmetal 
D) is definitely a nonmetal 
E) is definitely a metalloid

Question 12

Sulfur forms an ion with a charge of ________.

Accepted Answer

A) 2+ 
B) 2- 
C) 3+ 
D) 6- 
E) 6+ 
A) 2+ 
B) 2- 
C) 3+ 
D) 6- 
E) 6+

Question 13

The element X has two naturally occurring isotopes.The masses (amu)and % abundances of the isotopes are given in the table below.The average atomic mass of the element is ________ amu.

Accepted Answer

A) 30.20 
B) 33.20 
C) 34.02 
D) 35.22 
E) 32.73 
A) 30.20 
B) 33.20 
C) 34.02 
D) 35.22 
E) 32.73

Question 14

Which one of the following will occur as diatomic molecules in elemental form?

Accepted Answer

A) helium 
B) argon 
C) chlorine 
D) phosphorous 
E) sodium 
A) helium 
B) argon 
C) chlorine 
D) phosphorous 
E) sodium

Question 15

The average atomic weight of copper,which has two naturally occurring isotopes,is 63.5.One of the isotopes has an atomic weight of 62.9 amu and constitutes 69.1% of the copper isotopes.The other isotope has an abundance of 30.9%.The atomic weight (amu)of the second isotope is ________ amu.

Accepted Answer

A) 63.2 
B) 63.8 
C) 64.1 
D) 64.8 
E) 28.1 
A) 63.2 
B) 63.8 
C) 64.1 
D) 64.8 
E) 28.1

Question 16

The correct name for Ni(CN)2 is ________.

Accepted Answer

A) nickel (I)cyanide 
B) nickel cyanate 
C) nickel carbonate 
D) nickel (II)cyanide 
E) nickel (I)nitride 
A) nickel (I)cyanide 
B) nickel cyanate 
C) nickel carbonate 
D) nickel (II)cyanide 
E) nickel (I)nitride

Question 17

The correct name for HClO is ________.

Accepted Answer

A) hydrochloric acid 
B) perchloric acid 
C) chloric acid 
D) chlorous acid 
E) hypochlorous acid 
A) hydrochloric acid 
B) perchloric acid 
C) chloric acid 
D) chlorous acid 
E) hypochlorous acid

Question 18

Which species below is the nitride ion?

Accepted Answer

A) Na+ 
B) NO3- 
C) NO2- 
D) NH4+ 
E) N3- 
A) Na+ 
B) NO3- 
C) NO2- 
D) NH4+ 
E) N3-

Question 19

The elements in groups 1A,6A,and 7A are called ________,respectively.

Accepted Answer

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

Question 20

Of the following,the smallest and lightest subatomic particle is the ________.

Accepted Answer

A) neutron 
B) proton 
C) electron 
D) nucleus 
E) alpha particle 
A) neutron 
B) proton 
C) electron 
D) nucleus 
E) alpha particle

Exam 2: Atoms, molecules, and Ions

How many protons are there in one atom of 71Ga?

The element X has three naturally occurring isotopes.The isotopic masses (amu)and % abundances of the isotopes are given in the table below.The average atomic mass of the element is ________ amu.

An atom of 14C contains ________ electrons.

In the symbol below,X = ________. X

Aluminum forms an ion with a charge of ________.

How many neutrons are there in one atom of 184W?

Different isotopes of a particular element contain the same number of ________.

The formula for zinc phosphate is Zn3(PO4)2.What is the formula for cadmium arsenate?

Which one of the following compounds is copper(I)chloride?

The correct name for Al2O3 is ________.

An element in the upper right corner of the periodic table ________.

Sulfur forms an ion with a charge of ________.

The element X has two naturally occurring isotopes.The masses (amu)and % abundances of the isotopes are given in the table below.The average atomic mass of the element is ________ amu.

Which one of the following will occur as diatomic molecules in elemental form?

The average atomic weight of copper,which has two naturally occurring isotopes,is 63.5.One of the isotopes has an atomic weight of 62.9 amu and constitutes 69.1% of the copper isotopes.The other isotope has an abundance of 30.9%.The atomic weight (amu)of the second isotope is ________ amu.

The correct name for Ni(CN)2 is ________.

The correct name for HClO is ________.

Which species below is the nitride ion?

The elements in groups 1A,6A,and 7A are called ________,respectively.

Of the following,the smallest and lightest subatomic particle is the ________.

Introduction: Matter, energy, and Measurement

Chemical Reactions and Reaction Stoichiometry

Reactions in Aqueous Solution

Thermochemistry

Electronic Structure of Atoms

Periodic Properties of the Elements

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

How many protons are there in one atom of ⁷¹Ga?

An atom of 14_{C contains ________ electrons.}

How many neutrons are there in one atom of ¹⁸⁴W?

The formula for zinc phosphate is Zn₃(PO₄)₂.What is the formula for cadmium arsenate?

The correct name for Al₂O₃is ________.

The correct name for Ni(CN)₂ is ________.