What is the formal charge on the starred oxygen in the carbonate ion? [O − O||C − ∗O]2−
0
-1
-2
1
FC=V−L−12(B)
V=Valence electrons = 6
L=Lone pair of electrons = 6
B=Bond pair of electrons = 12(2)=1
∴FC=6−6−1
FC=−1