Dictionary entry overview: What does isle mean? â¢ ISLE (noun) The noun ISLE has 1 sense: 1. a small island Familiarity information: ISLE used as a noun is very rare.
The sulfate ion is SO42- The sulfite ion is SO32- and is more basic that sulfate.
A step-by-step explanation of how to draw the SO3 2- Lewis Structure (Sulfite Ion). For the SO3 2- Lewis structure the total number of valence electrons (found on the periodic table) for the SO3 2- molecule. Once we know how many valence electrons there are in SO3 2- we can distribute them around the central atom with the goal of filling the outer shells of each atom.