UNIT 3: BONDING STUDY GUIDE
Completion of this study guide is optional. You may either:
(1) Complete this study guide on a SEPARATE SHEET OF PAPER, and submit on the day of the
test for up to 10 pts EC on the test. (I will be checking it for accuracy.)
(2) Forfeit the EC, and then use this study guide as an aid on the test. However, there is to be
no sharing of study guides!!
Definitions
 Anion
 Cation
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Delocalized electrons
Diatomic
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Formula unit
Hybrid orbital
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Molecule
VSEPR
Questions
1. What are the three types of bonds and what kinds of elements form them?
2. Describe what happens to the valence electrons around atoms when they form an ionic bond. When they
form a covalent bond.
3. What are the physical properties of ionic compounds?
4. What are the physical properties of covalent compounds?
5. What are the rules for naming ionic compounds? How do you indicate the oxidation number of transition
metal cations?
6. Why do the transition metal elements have multiple oxidation numbers?
7. What is the oxidation number for silver when it’s in a compound? For zinc when it’s in a compound?
8. Write the formulas for the following polyatomic ions: Hydroxide, phosphate, sulfate, carbonate, nitrate,
ammonium, acetate
9. What are the rules for naming covalent compounds?
10. What is the difference between a sigma and a pi bond?
11. What is the bond angle for the following molecular geometries/hybridizations?
sp, sp2, sp3, AX2, AX3, AX4
12. What are the Lewis structures for the seven diatomic elements?
13. Draw the Lewis structures for the following compounds, then provide the AXE notation and their
molecular shape. CO2, CF4, BeF2, PCl3, PCl5, SF4, SF6
14. How do you write formulas for compounds that contain polyatomic ions?
15. Determine the oxidation number for the underlined element in the following compounds and ions:
PO43–, SO2, ClF5, RuO2F2, Cr2O72–, CrO32–, XeOF4