how many lone pairs are present on the central atom in a correct lewis structure for the sulfite ion?
Actually it is iodine dichloride ion (ICl2-) whcih is formed b/w Iodide ion and two chlorine atoms. There are 7 + (2x7) + 1 = 22 valence electrons.The Lewis structure will have a linear geometry with 3 lone pairs are present on Iodine along with two single covalent bonds with chlorine on both sides. [Cl(7 e+e)----I----Cl(7e+e) ]^- Just a rough sketch plz comprehend it. I hope you'll get it. Best wishes!