Rules

1. The first element is named first, using the elements name.

2. Second element is named as an Anion (suffix "-ide")

3. Prefixes are used to denote the number of atoms

4. "Mono" is not used to name the first element

Note: when the addition of the Greek prefix places two vowels adjacent to one another, the "a" (or the "o") at the end of the Greek prefix is usually dropped; e.g., "nonaoxide" would be written as "nonoxide", and "monooxide" would be written as "monoxide". The "i" at the end of the prefixes "di-" and "tri-" are never dropped.