Download Chapters 7/8 Worksheet 1

Honors Chemistry
Chapters 7/8 worksheet 1
Name __________________
1. Using electronegativity values, determine the type of each compound as being ionic, polar
covalent, or nonpolar covalent.
CH4
NaF
NBr3
CuO
MgCl2
2. Based on looking at the periodic table, determine the type of each compound as being ionic or
covalent.
NI3
KBr
BaS
CO
FeS
3. List the seven diatomic elements:
4. Draw an orbital notation diagram for 3 of the diatomic elements. Choose those elements so
your diagrams show a single, double, and triple bond.
5. Explain the relationship between lattice energy and the size of ions.
6. Rate the following ionic compounds from smallest to largest in regard to lattice energy.
a) LiF, KCl, LiCl
b) NaBr, LiBr, LiF
c) KF, KI, KBr
7. Draw the following ionic compounds using ionic bonding pictures.
a) FeCl3
b) MgS
c) Ca3N2
d) KI
e) AlF3
f) Na2O
8. Explain the general relationship between bond length and bond energy.
9. Based on the following bond lengths, order the following according to increasing bond energy.
Group 1
a) H - H 74 picometers
Group 2
a) C - O 143 pm
b) Cl - Cl 198 pm
b) C - Br 193 pm
c) I - I 266 pm
c) C - H 110 pm
d) Br - Br 228 pm
d) C - N 147 pm
10. Draw Lewis structures for the following compounds/ polyatomic ions:
HBr
OF2
CN -1
H3PO4
ammonium ion
hydroxide ion
SO3 -2
O3
PCl3
CO2