Final answer:
The -ide suffix on an ion's name indicates that it is a monatomic anion. In acid naming, -ide anions form acids with names beginning with 'hydro-' and ending with '-ic acid', while anions with -ate and -ite give rise to acids ending in -ic acid and -ous acid, respectively.
Step-by-step explanation:
The presence of an -ide ending on the name of an ion tells you that the ion is a monatomic anion. For example, the fluoride ion is represented by F¯ and has an -ide suffix, indicating that it is a negatively charged ion consisting of a single type of atom.
Similarly, the oxide ion is represented by O²¯, and other common monatomic ions include the chloride ion (Cl¯) and the selenide ion (Se²¯). When naming acids derived from these anions, if the anion ends with -ide, the acid name begins with 'hydro-' and ends with '-ic acid', such as hydrochloric acid from the chloride ion.
In contrast, polyatomic ions that contain oxygen are named with the suffixes -ate and -ite, indicating their part in a series and their relative oxygen content. It is important to recognize that the name changing fits into a pattern: for acids containing anions that end in -ate, the acid name has an -ic acid ending (e.g., nitric acid from the nitrate ion), and for those with anions ending in -ite, the corresponding acid uses the -ous acid ending (e.g., nitrous acid from the nitrite ion).