In: Chemistry
Find the best Lewis dot structure for this molecule. BCl3 For this structure, how many equivalent resonance structures exist? What is the formal charge on the central atom?
Formal Charge
Number of Resonance Structures
In BCl3, there are no double bonds. So, there will be no resonance.
The formula of formal charge is:
Formal charge = [# of valence electrons] – [electrons in lone pairs
+ 1/2 the number of bonding electrons]
For B:
# of valence electrons for B = 3
It has 3 bond
So, number of bonding electrons = 6
It has 0 lone pair.
So, electrons in lone pairs = 0
Formal charge = 3 - (0 + 1/2 * 6)
= 3 - 3
= 0
0
0