Formal charge?

[Alondra Juarez section 1E]

What is formal charge and how do we calculate it?

[Kuldeep Gill 1H]

Hi, you take the number of valence electrons minus half the number of shared electrons minus the number of unshared electrons. This will give you the formal charge of that atom!

[sylvie_1D]

The purpose of formal charge is to find the lowest energy state possible for the molecule. Formal charge predicts what arrangment of atoms a molecule is most likely to be found in and create s a lewis structure with the lowest energy (0)

[CarinaVargas1J]

Formal Charge= # of valence electrons on atom- lone pair electrons + # of bonds

[Sonia Aronson 1B]

The equation for finding formal charge is:
Formal Charge= [# of valence electrons on atom]- [lone pair electrons + # of bonds]

[Erin Li 1K]

you calculate formal charge by using the equation
number of valence electrons - number of lone electrons and number of bonds

[Sarai Ventura 1L]

According to the book formal charge is the electric charge of an atom in a molecule assigned on the assumption that the bonding is nonpolar covalent. Formal Charge (FC)= number off valence electrons in the free atom-(number of lone pair electrons+1/2 x number of shared electrons). However, since the “number of bonding electrons divided by 2” term is also equal to the number of bonds surrounding the atom, here's the shortcut formula: Formal Charge = [# of valence electrons on atom] – [non-bonded electrons + number of bonds].

[hannahtweedy]

Would the equation:

valence electrons - non-bonding valence electrons - (bonding electrons/2)

also work?

[MadelynNguyen1F]

Yes! The equation [valence electrons - non-bonding valence electrons - (bonding electrons/2) ] would also work

[Endri Dis 1J]

Yeah there is a very easy way to calculate it, all you have to do is get the valence electrons from that atom and subtract both the lone pairs and the bond pairs.

[Sara Veerman-1H]

Formal Charge = (# of valence e-) – (# of lone pair e-) – (1/2)(# of bonded e-)

[Allen Chen 1J]

The formal charge is the # of valence electrons – # of lone pair electrons – (1/2)(# of bonded electrons

[Maria Zamarripa 1L]

The equation for the formal charge is, formal charge = V - (L+1/2(B)) V= # of valence electron of the element, L= # of lone pairs surrounding the atom (count each electron), B= bonded pairs (count each electron)