Consider the Lewis structure below. What are the formal charges of each atom?

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B - ?
F - ?

1 Answer
Apr 25, 2017

FC (:B≡) = 2

FC (≡F:) = +2

Explanation:

Formal Charge

FC=valenceBonded electrons2nonbonded electrons

or

FC=VB2N

V= Valence

B= Bonded Electrons

N= Nonbonded Electrons

Isolate the element of interest, all bonds, and nonbonded electrons

Boron :B≡FC=3(62)2=2

Fluoride ≡F:FC=7(62)2=+2