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.
Ernest Z. Potassium iodide is an ionic compound. Potassium is in Group 1 of the Periodic Table. That means it is a metal. Iodine is in Group 17 of the Periodic Table. That means it is a nonmetal. Metals react with nonmetals to form ionic compounds. A sodium atom transfers an electron to a chlorine atom to form a sodium ion and a chloride ion. The product is the ionic compound, sodium chloride. In the same way, a potassium atom transfers an electron to an iodine atom to form a potassium ion and an iodide ion. So, potassium iodide is an ionic compound.