Bonding
Name: _________________
1. Phosphorus reacts with Chlorine to form two compounds, PCl3 and PCl5. What is the
hybridization and shape for each molecule?
2. When Nitrogen reacts with Chlorine, only one compound (NCl3) is formed. Explain
why Nitrogen is different from Phosphorus in this reaction.
3. What are the approximate bond angles in each of the following? Justify your answers.
a. ONO in NO3-
b. HPH in PH3
c. FSF in SF6
4. What is the shape and the hybridization of the central atom for each of the following?
a. SO3
b. XeF2
c. IF5
d. SeF6
e. ICl4-
f. I3-
5. For the following molecules:
i.
ii.
iii.
iv.
Draw a Lewis electron-dot structure.
Identify the shape.
Identify the hybridization of each central atom.
Identify whether the molecule is polar or not.
a. CF4
b. XeF4
c. ClF3
d. SiF4
e. SeF4
f. KrF4
6. The bond angle for H-N-H in the Ammonia molecule is 107o, whereas the bond angle
for H-P-H in the molecule PH3 is 93o. Explain:
a. Why the H-N-H bond angle is 107o.
b. Why the H-P-H bond angle is 93o.
c. Since N and P are in the same group in the periodic table, why are their bond
angles different?