Recent Advances in Atomic Physics, Volumen1

a-particles absorption angle Ångström atomic number atomic weight Avogadro's Avogadro's number beam calculated cathode rays centimetre centre charge chemical chloride coefficient collisions constant corresponding crystal cube cubic cubic centimetre density determined diffraction direction displacement distance droplets effect electric field electromagnetic electrons elementary charge elements emission emitted equal equation experimental experiments expression fact filament frequency gases given gives gramme gramme-molecule helium hydrogen intensity ionisation ions isotopes J. J. Thomson kinetic energy kinetic theory known large number lattice lines magnetic field mass mean free path measured metal method millimetre molecular monochromatic nucleus number of atoms number of molecules observed obtained oscillations oxygen particles passing phenomena photographic plane plate possible potential pressure produced properties quantity radiation radioactive radium ratio reflected refractive result rotation Rutherford screen specific heat spectral spectral line spectrum substance temperature transformation tube unit uranium volume wave-length waves X-rays ᎡᎢ