## Formal Charge

Doreen Liu 4D
Posts: 54
Joined: Wed Sep 11, 2019 12:17 am

### Formal Charge

The formal charge equation is FC=V-(L+S/2) where V=valence electrons and L=lone pairs. What is the "S" in the equation?

WesleyWu_1C
Posts: 117
Joined: Thu Jul 25, 2019 12:16 am

### Re: Formal Charge

S = shared electrons. For example, if there is one bond between 2 atoms, then the s=2 (2 shared electrons).

EricZhao3G
Posts: 51
Joined: Tue Oct 08, 2019 12:16 am

### Re: Formal Charge

The S in the equation is for shared electrons. For each bond between 2 atoms, there are 2 shared electrons. So if there exists a triple bond, there are a total of 6 shared electrons for those atoms.