Question

How do we know which element is the anion in a chemical formula ?

Anions are the first element in a chemical formula and don't end with -ide or

Anions are the last element in a chemical formula and end with

Answer 1

Answer:

The overall ionic formula for a compound must be electrically neutral, meaning it has no charge. When writing the formula for the ionic compound, the cation comes first, followed by the anion, both with numeric subscripts to indicate the number of atoms of each.