In chemistry, peroxides are a group of compounds with the structure , where the R's represent a radical (a portion of a complete molecule; not necessarily a free radical) and O's are single oxygen atoms. Oxygen atoms are joined to each other and to adjacent elements through single covalent bonds, denoted by dashes or lines. The group in a peroxide is often called the peroxide group, though some nomenclature discrepancies exist. This linkage is recognized as a common polyatomic ion, and exists in many molecules.
IN chemIstRY, perOxIdEs are a GrOUp Of compoUnds With tHe strUCTUre , wHere thE R's rePrEsEnt a rAdIcal (a Portion of a COmPletE moLEcuLE; nOt NeCeSsaRILy a fRee raDIcAl) And O's Are single oxygEn aTOMS. oXygEN aToms ARE jOiNeD tO eacH OTher anD To aDjaCenT eLemEnts through sinGLe covALEnt BoNds, DenoTED by DaSHeS or LinEs. thE grouP in A PeroXide iS ofTen cALleD THE PeroxIde GRoup, thoUgH sOme nomEnClaTuRE discrepAnCies EXist. tHis LInkage is RecOgnIzed as a COmmon PolyaTOmIc ioN, and exiSts in MaNY molecUleS.