Structural isomer
compound whose molecule has the same number of atoms of each element / From Wikipedia, the free encyclopedia
A structural isomer or constitutional isomer of a compound is another compound whose molecule has the same number of atoms of each element, but with logically distinct bonds between them. The opposite of structual isomerism is stereoisomerism.[1] There are many words that represents structual isomers.
There are three kinds of constitutional isomers. They are skeletal isomers, positional isomers, and functional isomers. Positional isomers are also called regioisomers. Tautomers are also a kind of functional isomers.