Here's why:
* Cations are typically metals, while anions are typically nonmetals.
* In an ionic compound, the metal (cation) usually loses electrons and becomes positively charged, while the nonmetal (anion) gains electrons and becomes negatively charged.
* The charges balance out to create a neutral compound.
For example, in the ionic compound sodium chloride (NaCl):
* Sodium (Na) is the cation (Na+)
* Chloride (Cl) is the anion (Cl-)
Therefore, when naming the compound, we name the cation first, followed by the anion: sodium chloride.