Polar Bonds
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 62
- Joined: Fri Sep 28, 2018 12:17 am
-
- Posts: 65
- Joined: Fri Sep 28, 2018 12:28 am
Re: Polar Bonds
If they are opposite each other or have the same relative force of attraction, then they cancel out.
-
- Posts: 31
- Joined: Fri Sep 28, 2018 12:17 am
Re: Polar Bonds
Consider SiF4. Si-F bond would be ionic (and polar, and have dipoles) because the electronegativity difference is greater than 2. However, since SiF4 is tetrahedral, this same force is exerted in four directions opposite to each other. The vectors would thus cancel out and the molecule would be nonpolar.
-
- Posts: 72
- Joined: Fri Sep 28, 2018 12:29 am
Re: Polar Bonds
A good example of a nonpolar molecule with polar bonds is CO2. The central carbon will have a net positive charge and the two outer electrons will have a net negative charge. Since the shape of the molecule is linear, these two bond dipoles will cancel each other and the overall molecule will have zero dipole moment (nonpolar).
Who is online
Users browsing this forum: No registered users and 4 guests