5.8 - Chemical Formulas for Ionic compounds
5.8.1 - Writing
Formulas for compounds containing simple ions
Follow these simple steps to write chemical formulas for
ionic compounds containing simple
ions of Group A elements.
Write the chemical formula involving
||Write the symbols (including charge)
of the cation
with the cation listed first.
||Determine the smallest number of
each kind of ion needed to give an overall charge of zero.
||Write the chemical formula, using
the appropriate subscripts to make the compound neutral in charge.