Formal Charge of an Atom

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Maya Serota 3G
Posts: 47
Joined: Tue Sep 24, 2019 12:17 am

Formal Charge of an Atom

Postby Maya Serota 3G » Sun Oct 27, 2019 5:47 pm

Could someone explain how the formal charge is assigned to an atom? Thank you!!

Myka G 3J
Posts: 50
Joined: Fri Aug 30, 2019 12:17 am

Re: Formal Charge of an Atom

Postby Myka G 3J » Sun Oct 27, 2019 5:50 pm

To find formal charge you use the equation FC= valence electrons-(lone pairs + number of bonds)

Jada Brown 1E
Posts: 51
Joined: Sat Aug 17, 2019 12:15 am

Re: Formal Charge of an Atom

Postby Jada Brown 1E » Sun Oct 27, 2019 5:51 pm

To find the formal charge of an atom, you use the formula, valence electrons = total valence electrons - lone pair electrons - bonding electrons/2.

505106414
Posts: 55
Joined: Wed Sep 18, 2019 12:17 am

Re: Formal Charge of an Atom

Postby 505106414 » Thu Oct 31, 2019 9:54 am

Can you explain what the lone pairs part of the equation means and maybe give an example? Thank you!

Nathan Nakaguchi 4H
Posts: 51
Joined: Wed Sep 18, 2019 12:22 am

Re: Formal Charge of an Atom

Postby Nathan Nakaguchi 4H » Thu Oct 31, 2019 10:14 am

Formal Charge is assigned to an atom by following the formula: FC= V - (L+S/2) where V is the amount of valence electrons the atom has, L are the lone pairs it has (on a Lewis structure it would be the pairs of dots like ":"), and s being the bonds the atom has.

HuyHa_1D
Posts: 50
Joined: Wed Sep 11, 2019 12:15 am

Re: Formal Charge of an Atom

Postby HuyHa_1D » Sat Nov 02, 2019 1:39 am

Formal charge is calculated by utilizing the formula: Valence Electrons - (# of Lone Electron Pairs + # of Bonding Electrons/2).


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