Adjective
Having more than one atom in the molecule; consisting of several atoms.
Having a valence greater than one.
Source: Webster's dictionaryDissociated gas In this regime, diatomic or polyatomic gases (the gases found in most atmospheres) begin to dissociate as they come into contact with the bow shock generated by the body. Source: Internet
For example, the conjugate base of sulfuric acid (H 2 SO 4 ) is the polyatomic hydrogen sulfate anion ( HSOmain ). Source: Internet
A polyatomic ion can often be considered as the conjugate acid/base of a neutral molecule. Source: Internet
Charged polyatomic collections residing in solids (for example, common sulfate or nitrate ions) are generally not considered "molecules" in chemistry. Source: Internet
Each polyatomic ion in a compound is written individually in order to illustrate the separate groupings. Source: Internet
Monatomic ions are formed from single atoms, while polyatomic ions are formed from two or more atoms that have been bonded together, in each case yielding an ion with a positive or negative net charge. Source: Internet