Formal charge = number of valence electron - 1/2 bonded electron - lone pair electron
a. N3 = number of valence electron - 1/2 bonded electron - lone pair e-
= 5 - 2/4 - 4
= -1
b. CO = number of valence electron - 1/2 bonded electron - lone pair e-
Charge on carbon
= 4 - 2 - 6/2
= -1
charge on oxygen
number of valence electron - 1/2 bonded electron - lone pair e-
= 6 - 2 - 6/2
= +1
c. NO3
by making structure we found that each oxygen has different charge in this compound.
O = -1, -1 , 0
N = 0
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