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Electrolysis and the Mass of the Hydrogen Atom
Negative Corpuscular Radiation and the Electron
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a-particles absorption according actinium alkali metals atomic nucleus atomic number atomic weight Bohr's theory caesium cathode rays chemical corresponding crystal denotes determined diffraction disintegration constant doublet elementary quantum elements emanation emission energy-levels equal equation frequency difference fundamental term given gram of radium half-value period helium Hence hydrogen atom hydrogen lines ionization ions isotopes kinetic energy known lattice plane light-quantum Loschmidt number mass measurements method molecules natural sequence normal nuclear charge number number of atoms observed obtained optical orbit ordinal numbers particles periodic system polonium positive potential principal quantum principal quantum number principal series produced protoactinium quantum of action quantum of electricity radiation radioactive radioelements radium relation represented Rontgen Rontgen lines Rontgen rays rubidium s-term so-called Sommerfeld spark spectra spectral lines spectrum subordinate number subordinate series thorium tion transformation product transformation series transition tube two-quantum uranium valency electron velocity wave-length y-rays Zeeman effect