Definition- Binary compounds are composed of two elements and can be ionic or molecular.
Composition- They are made of a metal and a nonmetal
How to Name- To name any binary ionic compound, place the cation (usually a metal) first and then the anion name (usually a nonmetal). The anion has a prefix according to the subscript. Use the chart below to help you.
Ending- ide
Example- Aluminun is a metal and it bonds with the nonmetal oxygen to make aluminum oxide.
Other Hints- Use the crossing over principle to write the formula of a binary compound.
An example of the crossing over principle done of aluminun oxide.