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.
Iron(II) sulfite is an ionic compound that results from the combination of an iron (FE) (II) ion with a sulfite ion (SO3). The Fe(II) ion has a +2 charge, and the sulfite ion has a -2 charge. Since these charges balance, only one sulfite ion and one Fe(II) ion are combined to make iron(II) sulfite.