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.
The sulfur atom is in the +6 oxidation state while the four oxygen atoms are each in the â2 state. The sulfate ion carries a negative two charge and is the conjugate base of the bisulfate (or hydrogen sulfate) ion, HSO 4 â , which is the conjugate base of H 2SO 4, sulfuric acid.he sulfur atom is in the +6 oxidation state while the four oxygen atoms are each in the â2 state. The sulfate ion carries a negative two charge and is the conjugate base of the bisulfate (or hydrogen sulfate) ion, HSO 4 â , which is the conjugate base of H 2SO 4, sulfuric acid.