Top Posters
Since Sunday
47
s
32
9
k
8
p
7
B
7
o
7
n
7
x
6
b
6
k
6
C
5
New Topic  
sauceboii sauceboii
wrote...
Posts: 208
Rep: 0 0
A year ago
Both CO2 and SiO2 appear to have valid Lewis structures. Using the molecular orbital model, why then are CO2 molecules stable and SiO2 molecules not stable?


CO2 is able to form sigma bonds and SiO2 is not.

The silicon 3p valence orbitals do not overlap very effectively with the smaller oxygen 2p orbitals.

The carbon atom is larger than the silicon atom, giving carbon a higher electron density and thus better pi bonding.

Silicon prefers to bond to other silicon atoms over oxygen atoms.

At least two of these are correct.
Textbook 

Chemistry: An Atoms First Approach


Edition: 3rd
Authors:
Read 43 times
2 Replies
Replies
Answer verified by a subject expert
knppp000knppp000
wrote...
Posts: 83
Rep: 0 0
A year ago
Sign in or Sign up in seconds to unlock everything for free
More questions for this book are available here
The silicon 3p valence orbitals do not overlap very effectively with the smaller oxygen 2p orbitals.
1

Related Topics

wrote...
2 weeks ago
Thanks!
New Topic      
Explore
Post your homework questions and get free online help from our incredible volunteers
  278 People Browsing
 531 Signed Up Today
Related Images
  
 313
  
 455
  
 162
Your Opinion
How often do you eat-out per week?
Votes: 32