Here's why:
* "Trioxonitrate" is a systematic name based on the old "oxoacid" naming system. It is not commonly used.
* "Sodium" is the correct name for the cation (Na+).
* "Nitrate" is the common and accepted name for the anion (NO3-).
Therefore, the correct and preferred name for this compound is sodium nitrate (NaNO3).
This is the commonly used name and is found in chemical databases and literature.
