elastic collision, 463 elastic scattering in reaction dynamics , 463 elastic scattering in spectrochemistry , 463 elastically active network chain, 463 elastomer, 463 electric capacitance, 464 electric charge, , 464 electric conductance, , 464 electric conductivity, 464 electric current, , 464 electric current density, , 465 electric dipole moment, , 465 electric displacement, , 465 electric field (strength), , 465 electric mobility, , , 465 electric polarizability, , 466 electric potential, , 466 electric potential difference, of a galvanic cell , 466 electric resistance, , 466 electric resistivity, 467 electric sector in mass spectrometry , 467 electrical arc, 467 electrical hygrometer, 467 electrically conducting polymer, 467 electrified interphase, 468 electro-dialysis, 468 electro-endosmosis, 468 electro-osmosis, 468 electro-osmotic hold-up time, in capillary electromigration , 469 electro-osmotic mobility, or in capillary electromigration, 469 electro-osmotic pressure, 469 electro-osmotic velocity, 469 electro-osmotic volume flow, 469 electroactive substance, 470electrocapillarity, 470 electrocapillary equation, 470 electrochemical detector in gas chromatography , 471 electrochemical method of detection in analysis , 471 electrochemical potential, 471 electrocyclic reaction, 471 electrode current density, , 472 electrode potential, , 473 electrode process, 473 electrode reaction, 473 electrode reaction rate constants, 473 electrodecantation (or electrophoresis convection), 474 electrodeposition, 474 electrofuge, 475 electrogenerated chemiluminescence (ECL), 475 electrographite, 475 electrokinetic potential, , 475 electroluminescent polymer, 476 electrolytic hygrometer, 476 electromeric effect, 476 electromigration, 477 electromotive force, , 477 electron, 477 electron acceptor, 477 electron affinity, , 478 electron attachment, 478 electron back-transfer, 478 electron beam curing, 479 electron capture, 479 electron capture detector in gas chromatography , 479 electron charge, 479 electron correlation, 479 electron density, 480 electron density function, 480 electron detachment, 480 electron donor, 480 electron energy in mass spectrometry , 481 electron exchange excitation transfer, 481 electron impact ionization [obsolete] in mass spectrometry , 481 electron ionization in mass spectrometry , 481 electron jump, 482 electron kinetic energy, 482 electron microscopy, 482 electron paramagnetic resonance (EPR), 482 electron probe microanalysis (EPMA), 482electron probe X-ray microanalysis (EPXMA), 482 electron rest mass, 483 electron spectroscopy for chemical analysis (ESCA), 483 electron stopping power in X-ray emission spectroscopy , 483 electron transfer, 483 electron transfer photosensitization, 484 electron work function, , 484 electron-counting rules, 484 electron-deficient bond, 484 electron-deficient compounds, 485 electron-donor-acceptor complex [obsolete] , 485 electron-pair acceptor, 485 electron-pair donor, 485 electron-transfer catalysis, 486 electronation, 486 electronegativity, 486 electroneutrality principle, 487 electronic chemical potential, 487 electronic effect of substituents: symbols and signs, 487 electronic energy migration (or hopping), 487 electronic stability, 488 electronic state, 488 electronically excited state, 488 electronvolt, 488 electrophile (electrophilic), 488 electrophilicity, 489 electrophoresis, 489 electrophoretic mobility, , 489 electrophoretic velocity, , 490 electrophotography, 490 electrosmosis [obsolete] , 490 electrostatic filter, 490 electrostatic precipitator, 491 electrostriction, 491 electrothermal atomizer in spectrochemical analysis , 491 electroviscous effects, 491 element, 492 element effect, 492 elementary charge, 492 elementary entity, 492 elementary particle in nuclear chemistry , 492 elementary reaction, 493 elimination, 493 eluate, 493 eluent, 493 elute, 494 elution, 494