Unit 5 - Bonding Notes
Bonding and Shape Test Review
Determine the formula for the compound formed by the two atoms and indicate
if it is an ionic or covalent compound
1. Calcium and Oxygen
2. Nitrogen and Fluorine
CaO
NF3
3. Sodium and Chlorine
NaCl
4. Carbon and Oxygen
CO2
Draw the dot diagram for each of the IONIC compounds below
5. CaO
6. Na2S
7. SrF2
10. KI
Review; http://www.youtube.com/watch?v=9DKId82_rUc
Complete the table below.
Formula
Electron Dot
Diagram
Bonding
Orbitals
Shape
Structural Formula
Polar?
NCl3
sp
Trigonal
Pyramidal
CO2
sp
Linear
N
H2O
sp3
Bent
Y
3
1
Y
sp3
CH3F
Tetrahedral
Y
VSPER Worksheet:
1)
What is the main idea behind VSEPR theory?
It is a set of rules whereby the chemist may predict the shape of an isolated
molecule. It is based on the premise that groups of electrons surrounding a
central atom repel each other, and that to minimize the overall energy of the
molecule, these groups of electrons try to get as far apart as possible.
2)
For each of the following compounds, draw the Lewis diagram, structural
diagram and name the molecular shapes, and for all atoms:
a)
carbon tetrachloride
CCl4
b)
BH3
c)
silicon disulfide
SiS2
d)
PF3
e)
carbon dioxide
Tetrahedral
Trigonal Planar
Linear
Trigonal Pyramid
Linear
CO2
f)
SF2
Bent
2
Unit 5 Test Review
1. Calcium and Oxygen
2. Carbon and Fluorine
H2O Complete the table below
Formula
Electron Dot Diagram
CH4
Shape
Structural Formula
Polar?
Tetrahedral
No
Ben
Yes
BH3
Trigonal
Planar
Yes
NH3
Trigonal
Pyramidal
Yes
CO2
Linear
No
H2O
Draw the Lewis dot diagram for the compounds below
6. AlN
[Al] +3 [N] -3
8. SCl2
7. HgCl2
[Hg] +2 [Cl] -1
[Cl] -1
9. NaF
[Na] +1 [F] -1
10. BF3
11. SiCl4
3
Write the formula for the following compounds
12. Aluminum Bromide
AlBr3
14. Ammonium Fluoride
NH4F
16. Copper (I) Chloride
CuCl
13. Dinitrogen Tetroxide
N2O4
15. Iron (II) Sulfate
FeSO4
17. Carbon Dioxide
CO2
4