Answer:
ClO3-:
SO3-2:
Step-by-step explanation:
To write the Lewis structure it is important to look for the valence electrons of each atom in the Periodic Table of Elements.
It is important to write an atom in the center (when there are more than 1 repeated atom, the atom with more electronegativity goes in the center).
Finally, we have to form the Octet in each atom (except in Hydrogen, because it can only has 2 electrons bonded).
• ClO3-,:
Cl has 7 valence electrons and O has 6 valence electrons.
• SO3-2,:
S and O have 6 valence electrons.