Answer:
0
Explanation:
Chlorate ion ([tex]ClO_3^-[/tex]) :
Valence electrons of chlorine = 7
Valence electrons of oxygen = 6
Charge = -1 which means one electron is gained
The total number of the valence electrons = 7 + 3(6) + 1 = 26
The Lewis structure is drawn in such a way that the octet of each atom and duet for the hydrogen in the molecule is complete. So,
The Lewis structure is shown in the image.
Formula for formal charge :
[tex]\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}[/tex]
From the structure,
[tex]{Formal\ charge_{Cl}}={7}-{2}-\frac{10}{2}=0[/tex]
