Question

The formal charge of the $O$ -atoms in the ion $\left[:N=O:\right]$ is

Answer 1

Answer: 0

The formal charge of the $O$ -atoms in the ion $\left[:N=O:\right]$ will be calculated by this formula:
Formal charge of atom $=$ Total valence electrons $-$ Number of unshared electrons $-\frac{1}{2}$ ( Number of bonding electrons)
Where, Total valence electrons $=6$
Number of unshared electrons $=4$
Total number of bonding electrons $=4$
Put the all values in above formula, Then
Formal charge on oxygen atom $=$ $6-4-\frac{4}{2}$
$=6-4-2=0$
Formal charge on oxygen atom will be zero.