0 containing more than two atoms --
1 containing more than two atoms --
These coordinates are particularly common in treating polyatomic molecules and chemical reactions, and in celestial mechanics.
See polyatomic ions for a list of possible ions.
Large regions of higher density matter known as molecular clouds allow chemical reactions to occur, including the formation of organic polyatomic species.
Polyatomic ions containing oxygen, such as carbonate and sulfate, are called "oxyanions".
In polyatomic systems, they may also include compositional fluctuations.
This equation applies to all polyatomic gases, if the degrees of freedom are known.
Parentheses may also be used to represent a binomial coefficient, and in chemistry to denote a polyatomic ion.
Among the polyatomic nonmetals, carbon, phosphorus and seleniumwhich border the metalloidsbegin to show some metallic character.
