It would include, nitride, oxide, fluoride and so would be anions or negative ions.
if the negative ion is a single element, the end of its name changes to -ide
No: Anions of nonmetals end in the suffix -ide, but no element name ends in this group of letters.
The ide ending in a polyatomic ion actually has no practical meaning involved. The polyatomic compounds that do contain the ide ending have it because they were thought to be monatomic at one time.
Hydroxide ion
-ide
-ide
This is a binary salt.
This is a binary salt.
No. The hydroxide ion has a negative charge as do all ions ending in -ide, -ite, or -ate.
Anions end in -ide if they are monatomic. Example: chlorine becomes "chloride." Polyatomic ions will have different suffixes.
Anions end in -ide if they are monatomic. Example: chlorine becomes "chloride." Polyatomic ions will have different suffixes.