I have a few questions:
- All ionic bond occurs between a metal and a non-metal. Is this true? In the definition of metal and/or non-metal are the metaloids included? In the definition of non-metal are all diatomic and polyatomic non-metals included? Meaning all of those elements form ionic bonds with metals?
- When 2 charged molecules form an ionic bond, how is the compound classified?
- For ionic compounds formed by only 2 different elements, knowing the metal and the non-metal in question, is it possible to have more than one formula for the compound? I think this is probably possible and maybe even common for the transition metals, because we usually see those roman numerals in their formulae. Am I correct in assume transition metals can form different ionic compounds (meaning different formula) with one same element? If yes, why does that happen?
- does item 3 extends to charged molecules?