Rule 1: Just give the name of the cation, then the name of the anion.
- The ion names are not changed in any way.
- There are no prefixes involved.
WRITING
FORMULAS
Rule 2: No charges are included in the full compound formula.
Rule 3: Each ion may have its own subscript (which is separate from any subscripts that may be within the ion formula itself).
Rule 4: The values of these subscripts are determined based on how many of each ion is needed in order for the positive and negative charges to balance out.