WorksheetsIonic Formulas - Binary
Total questions: 20
Worksheet time: 36mins
Name
Class
Date
1.
The formula of this atom when it becomes an ion would be
a)
N-2
b)
N+3
c)
N-3
d)
N+2
2.
A negatively-charged ion.
a)
atom
b)
cation
c)
anion
d)
electron
3.
An atom that has lost or gained electrons; an atom with a charge.
a)
cation
b)
anion
c)
isotope
d)
ion
4.
Cations are
a)
positive
b)
negative
c)
on the right side of the periodic table.
d)
nonmetals
5.
Na + and S -2
a)
Na2S
b)
NaS2
c)
Na2S2
d)
NaS
6.
K + and N-3
a)
KN
b)
KN3
c)
K3N3
d)
K3N
7.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.
8.
How do the following two elements bond together?
Al3+ O2-
Al3+ O2-
a)
AlO
b)
Al2O3
c)
Al3O6
d)
Al3O2
9.
What would be the proper chemical formula for combining Al3+ and l- :
a)
Al l3
b)
Al3l
c)
Al l
d)
Al3 l3
10.
What formula results when Ca+2 and Br- ions bond?
a)
Ca2Br2
b)
CaBr
c)
Ca(br)2
d)
CaBr2
11.
What is the correct ionic formula for sodium chloride?
Sodium = Na
Chlorine = Cl
Sodium = Na
Chlorine = Cl
a)
Na1Cl1
b)
Na1Cl2
c)
Na2Cl
d)
NaCl
12.
What is the correct formula for lithium sulfide?
Lithium = Li
Sulfur = S
Lithium = Li
Sulfur = S
a)
LiS
b)
Li2S
c)
LiS2
d)
Li2S1
13.
What is the correct formula for potassium nitride?
potassium = K
nitrogen = N
potassium = K
nitrogen = N
a)
KN
b)
K2N
c)
K3N
d)
KN3
14.
What is the correct formula for magnesium bromide?
Magnesium = Mg
Bromine = Br
Magnesium = Mg
Bromine = Br
a)
MgBr
b)
MgBr2
c)
Mg2Br
d)
Mg2Br4
15.
What is the correct formula for aluminum sulfide?
Aluminum = Al
Sulfur = S
Aluminum = Al
Sulfur = S
a)
AlS
b)
AlS3
c)
Al2S
d)
Al2S3
16.
What is the correct formula for barium sulfide?
Barium = Ba
Sulfur = S
a)
BaS
b)
BaS2
c)
Ba2S
d)
Ba2S3
17.
What is the correct formula for potassium oxide?
Potassium = K
Oxygen = O
Potassium = K
Oxygen = O
a)
KO
b)
KO2
c)
K2O
d)
K3O2
18.
What is the correct formula for calcium iodide?
a)
CaI
b)
CaI2
c)
Ca2I
d)
Ca2I3
19.
What is the correct formula for potassium bromide?
Potassium = K
Bromine = Br
Potassium = K
Bromine = Br
a)
KBr
b)
KBr2
c)
K2Br
d)
K2Br3
20.
The chemical formula for an ionic compound of potassium and oxygen is
a)
KO.
b)
K2O.
c)
K2O2.
d)
KO2.
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