Physical Science
Chapter 5 Review Packet
Name: __________________
Period: ______ Date: _____
1)
Why do atoms form compounds?
2)
How many electrons do most atoms want in their outer energy level in order to be chemically
stable?
3)
What is the difference between ionic and covalent bonds in terms of how they achieve a full outer
energy level of electrons?
4)
Why are noble gases relatively nonreactive?
5)
What are polyatomic ions?
6)
What is the oxidation # for Barium?
7)
Name 3 properties of most ionic compounds?
8)
Name 3 properties of most covalent compounds?
9)
Which of the following elements would Lithium most likely react with and why? K, Mg, Cl, Na
10)
How do you tell the difference between polar and non-polar molecules?
11)
Name the following covalent molecules and indicate if they are polar or nonpolar.
O
O
12)
N
O
O
N
O
For the molecules above circle all the double bonds.
13)
Complete the following chart.
Element Symbol
Ca
N
A) Dot Diagram
B) How many electrons
transferred?
C) Ion symbol
D) Chemical formula for
compound
E) Name of compound
14)
Aluminum
a. # protons: _____
b. electron shell diagram
# neutrons:_____
# electrons _____
c. dot diagram
Al
15)
€
Name the following compounds:
Ionic Compounds
a. Li4C
Covalent Molecules
d. P2S3
b. Mg3N2
e. CF4
c. Mg(PO 4 ) 2
f. N2O5
Polyatomic Ions
Name
Formula
Ammonium NH +1
4
−1
Acetate
C 2H 3O 2
−1
Chlorate
ClO 3
−1
Hydroxide
OH
−1
Nitrate
NO 3
Carbonate
CO −2
3
Sulfate
SO −2
4
Phosphate
PO −3
4
16)
Are the following ionic or covalent compounds? How can you tell?
a. BaCl2
b. CO
17)
Identify if the following compounds are ionic or covalent
AND write their chemical names.
c. KCl
a. KNO
3
b. S4N2
18)
d. NH4OH
Identify if the following compounds are ionic or covalent AND write their chemical formulas.
a. sodium nitride
e. carbon dioxide
b. beryllium chloride
f. calcium phosphate
c. triphosphorus pentachloride
g. tetraphosporus heptasulfide
d. potassium carbonate