Chemistry, The Central Science, 11th edition
Theodore L. Brown,H. Eugene LeMay, Jr.,
Bruce E. Bursten,
and Catherine J.Murphy
Chapter 2
Atoms, Molecules, and Ions
Dana & Michelle Chatellier
University of Delaware
© Copyright 2009, Pearson Education
The nucleus of an atom
contains:
a.
b.
c.
d.
protons and neutrons.
protons and electrons.
electrons and neutrons.
air.
The nucleus of an atom
contains:
a.
b.
c.
d.
protons and neutrons.
protons and electrons.
electrons and neutrons.
air.
Atoms with identical atomic
numbers but different mass
numbers are called:
a.
b.
c.
d.
mutants.
isomers.
isotopes.
symbiots.
Atoms with identical atomic
numbers but different mass
numbers are called:
a.
b.
c.
d.
mutants.
isomers.
Isotopes.
symbiots.
Atoms of elements on the left side
of the periodic table tend to:
a.
b.
c.
d.
gain electrons.
lose electrons.
keep electrons.
share electrons.
Atoms of elements on the left side
of the periodic table tend to:
a.
b.
c.
d.
gain electrons.
lose electrons.
keep electrons.
share electrons.
A compound consisting of a
metal and a nonmetal is called:
a.
b.
c.
d.
a molecular compound.
a mixed compound.
an empirical compound.
an ionic compound.
A compound consisting of a
metal and a nonmetal is called:
a.
b.
c.
d.
a molecular compound.
a mixed compound.
an empirical compound.
an ionic compound.
Positive ions are called:
a.
b.
c.
d.
positrons.
anions.
cations.
nucleons.
Positive ions are called:
a.
b.
c.
d.
positrons.
anions.
cations.
nucleons.
Compounds that contain only
carbon and hydrogen are called:
a.
b.
c.
d.
binary acids.
inorganic compounds.
hydrocarbons.
alkanes.
Compounds that contain only
carbon and hydrogen are called:
a.
b.
c.
d.
binary acids.
inorganic compounds.
hydrocarbons.
alkanes.
The elements located in group 7A
of the periodic table are called:
a.
b.
c.
d.
alkali metals.
noble gases.
chalcogens.
halogens.
The elements located in group 7A
of the periodic table are called:
a.
b.
c.
d.
alkali metals.
noble gases.
chalcogens.
halogens.
An acid is a substance that
produces which of the following
ions when dissolved in water?
a.
b.
c.
d.
K+
OH–
H+
H–
An acid is a substance that
produces which of the following
ions when dissolved in water?
a.
b.
c.
d.
K+
OH–
H+
H–
Which formula below does not
represent a compound that can
actually exist?
a.
b.
c.
d.
CaCO3
H 2O 2
KMnO4
Na2PO3
Which formula below does not
represent a compound that can
actually exist?
a.
b.
c.
d.
CaCO3
H 2O 2
KMnO4
Na2PO3
Which is the correct name for
NaOCl, the active ingredient
in Clorox bleach?
a.
b.
c.
d.
sodium chlorate
sodium chlorite
sodium perchlorate
sodium hypochlorite
Which is the correct name for
NaOCl, the active ingredient
in Clorox bleach?
a.
b.
c.
d.
sodium chlorate
sodium chlorite
sodium perchlorate
sodium hypochlorite