Question

what is formal charge of oxygen. ....

Answer 1

The formal charge on oxygen is calculated as follows. Oxygen has six valence electrons (GN = 6), two unshared electrons in one lone pair (UE = 2), and six shared electrons in three oxygen-hydrogen covalent bonds (BE = 6). Thus the calculated formal charge on oxygen is +1.

Answer 2

Here is your answer.
Oxygen has six valence electrons (GN = 6), two unshared electrons in one lone pair (UE = 2), and six shared electrons in three oxygen-hydrogen covalent bonds (BE = 6). Thus the calculated formal charge on oxygen is +1. This indicates the oxygen atom bears the majority of the positive charge of this ion.

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