Introduction to Contemporary Physics

actinium alpha-particles angle angular momentum atom-groups atom-model atomic number atomic weight axis beam bombarded chamber Chapter charge-to-mass ratio column constant corpuscles corresponding crystal curve deflection denote detected deuterons diffraction diffraction-pattern direction droplets elec electric electron-family electron-volts electrons elements emitted energy-values equal equation excited experiments fact Figure formula frequency function gamma-rays groups half-period helium hydrogen hydrogen atom hyperfine structure impacts impinging integer ionization isotopes kinetic energy known lattice light lines magnetic field magnetic moment mass mass-number measured metal method molecules negative electrons neutrons normal nuclear nuclei observed obtained occur orbital pair parallel physicists physics plane positive electrons positive ions protons Q-value quantal quantal theory quantum-number radiation radioactive radius range reaction residue rest-masses result scattered shell single sodium spectra spectrum speed spin stationary sub-levels substance suppose symbol target tion transmutation traversing trons wave-length waves X-rays Zeeman Zeeman effect zero