Chemistry Dictionary & Glossary: Terms Starting with P P-TYPE SEMICONDUCTORPAHPAIRINGPAIRING ENERGYPARAMAGNETICPARAMAGNETISMPARITY OPERATORPARRAFINSPARTIAL PRESSUREPARTICULATE MATTERPASCALPASCAL'S TRIANGLEPASSBANDPAULI EXCLUSION PRINCIPLEPELLICLESPENCIL ANGLEPENTA PRISMSPERCENT BY MASSPERCENT COMPOSITIONPERCENT PURITYPERCENTAGE IONIZATIONPERIODPERIODIC LAWPERIODIC TABLEPERIODICITYPEROXIDEPHPHASEPHASE DIAGRAMPHASE VELOCITYPHENOLPHONONPHOSPHORESCENCEPHOTOCHEMICAL OXIDANTSPHOTOCHEMICAL SMOGPHOTOCONDUCTIVE DETECTORPHOTOELASTIC EFFECTPHOTOELECTRIC EFFECTPHOTOELECTRON SPECTROSCOPY (PES)PHOTOMULTIPLIER TUBE (PMT)PHOTOMULTIPLIER TUBES (PMTS)PHOTONPHOTOSENSITIZED REACTIONPHOTOVOLTAIC DETECTORPHYSICAL CHANGEPHYSICAL VAPOR DEPOSITION (PVD)PIEZOELECTRIC EFFECTPLASMAPLASTIC DEFORMATIONPOCKEL’S CELLPOISEPOLAR BONDPOLARIMETERPOLARIZATIONPOLIO VACCINE CONTAMINATIONPOLYAMPHOLYTEPOLYDENTATEPOLYDISPERSEPOLYENEPOLYMERPOLYMERIZATIONPOLYMORPHPOLYMORPHOUSPOLYPROTICPOLYPROTIC ACIDPOSITRONPOTENTIAL ENERGYPOTENTIAL ENERGY SURFACE (PES)POYNTING VECTORPRECIPITATEPRESSURE AMPLITUDEPRIMARY CREEPPRIMARY STANDARDPRIMARY VOLTAIC CELLSPRODUCTPROTONPROTON DECOUPLINGPSEUDOBINARYIONIC COMPOUNDSPULSED GRADIENT SPIN ECHO (PSGE)PYRANOSEPYROLYTICPYROMAGNETIC