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WorksheetsUnit 3 - Ions and Ionic Compounds
Total questions: 40
Worksheet time: 24mins
Name
Class
Date
1.
Cations are
a)
positive
b)
negative
c)
on the right side of the periodic table.
d)
nonmetals
2.
When an atom gains a valence electron, it becomes a(n) _____________ ion.
a)
positive
b)
negative
c)
neutral
d)
polyatomic
3.
An electron has what kind of charge?
a)
no charge
b)
positive
c)
negative
d)
it depends
4.
Atoms that have gained & lost electrons are called _________
a)
ions
b)
isotopes
c)
radioactive
d)
corrosive
5.
Atoms are most stable when their outer shell is filled with electrons.
a)
true
b)
false
6.
The force of attraction between two oppositely charged ions
a)
ionic bond
b)
strong force
c)
positive/negative force
7.
Oxygen becomes an anion by _______ electrons.
a)
losing
b)
gaining
c)
sharing
d)
exciting
8.
Sodium loses an electron to become a ___________?
a)
neutral atom
b)
anion
c)
onion
d)
cation
9.
When the number of electrons equals the number of protons the atom has what charge?
a)
sponge bob
b)
positive charge
c)
negative charge
d)
neutral charge
10.
An atom with 3 valence electrons "wants" a full shell, so it can either gain 5 or lose 3. Which is more likely to occur?
a)
Gain 5
b)
Lose 3
c)
Nothing
11.
Valence electrons are those in the ______ energy level of an atom.
a)
innermost
b)
outermost
c)
middle
12.
Metals react by ____________ electrons
a)
losing
b)
gaining
13.
Nonmetals react by ____________ electrons
a)
losing
b)
gaining
14.
Ionic bonds form between two ions that have
a)
ionic compounds
b)
negative charges
c)
positive charges
d)
opposite charges
15.
In the chemical formula for an ionic compound, which item is written first?
a)
positive ion
b)
negative ion
c)
subscript
d)
the female
16.
If an atom has 3 valence electrons, what charge will it have as an ion?
a)
+3
b)
-3
c)
+5
d)
-5
17.
If an atom gains 3 electrons, what charge will it have as an ion?
a)
+3
b)
-3
c)
+5
d)
-5
18.
If an atom has 6 valence electrons, what charge will it have when it becomes an ion?
a)
+2
b)
-2
c)
+6
d)
-6
19.
If an atom has 2 valence electrons, what charge will it have when it becomes an ion?
a)
+2
b)
-2
c)
+6
d)
-6
20.
If an atom loses 2 valence electrons, what charge will it have as an ion?
a)
+2
b)
-2
c)
0
d)
+8
21.
If an element gains 1 electron, what charge will it have?
a)
+1
b)
-1
c)
+7
d)
-7
22.
What is the charge on the ion formed by neon?
a)
+1
b)
-1
c)
+/- 4
d)
no charge
23.
What is the charge of a Calcium (Ca) ion?
a)
1+
b)
2+
c)
1-
d)
2-
24.
What is the charge of a Sodium (Na) ion?
a)
1+
b)
2+
c)
3+
d)
1-
25.
What is the charge of a Nitrogen (N) ion?
a)
1-
b)
2-
c)
3-
d)
3+
26.
What is the charge of a Chlorine (Cl) ion?
a)
1+
b)
1-
c)
2+
d)
2-
27.
Anions are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
28.
Group 17 (7A) always has ions with a charge of
a)
+1
b)
+2
c)
-1
d)
-2
29.
What charge will an Oxygen ion have?
a)
+1
b)
-1
c)
+2
d)
-2
30.
Beryllium will ____ valence electrons when forming an ionic bond.
a)
lose 4
b)
gain 4
c)
lose 2
d)
gain 2
31.
Magnesium becomes Mg+2 by
a)
losing two electrons
b)
gaining two electrons
32.
Cations are _______ that form ____________ ions and __________ electrons.
a)
nonmetals, positive, lose
b)
nonmetals, negative, gain
c)
metals, positive, gain
d)
metals, positive, lose
33.
If an oxygen atom has 8 protons (+) and 10 electrons (-), what is it's formula and charge?
a)
O10-
b)
O8+
c)
O2-
d)
O10+
34.
Name the following Ionic Compound:
KCl
KCl
a)
Potassium Chlorine
b)
Potassium Chloride
c)
Potassium (I) Chlorine
d)
Potassium (II) Chloride
35.
Name the following Ionic Compound:
FePO4
FePO4
a)
Iron (III) Phosphate
b)
Iron (III) Phosphide
c)
Iron (II) Phosphate
d)
Iron (II) Phosphite
36.
If Mg+2 and Br-1 combine what is the resulting formula?
a)
MgBr2
b)
MgBr
c)
Mg2Br
d)
Br
37.
What is the name of the compound with a formula Fe2O3?
a)
iron oxide
b)
iron oxygen
c)
iron (II) oxide
d)
iron (III) oxide
38.
Name the ion... P3-
a)
Phosphorous
b)
Phosphide
c)
Phosphorous (III)
d)
Potassium
39.
Name this ion: NH4+
a)
ammonia
b)
ammonium
c)
nitrate
d)
nitride
40.
What is the correct formula for the polyatomic ion called sulfate?
a)
SO32–
b)
HSO4–
c)
SO42–
d)
C2H3O2–
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