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The Spectrum of Hafnium 2 24
Significance of Meteorites
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absorption edge abundance acid amounts anticathode Arc Spark atomic number atomic weight barium calcite calculated cathode rays Cbem cent cerium characteristic radiation chemical columbium compared composition compound constituents copper Coster crystal curve density determined double fluorides dysprosium earth electrons Element Line Absorp'n emitted energy erbium excitation exposure Figure given in Table gram hafnium content Harz helium Hevesy hydrogen igneous rocks increasing wave-lengths intensity ratio investigated iron meteorites lanthanum lead meteoric minerals mixture obtained Odenwald oxide Pbysik peridotites phosphate photographic plate present radioactive sample Schwarzwald secondary radiation solubility spectra Spectral Lines spectroscopy spectrum stony meteorites sulphate tantalum third element thorium tion troilite tube tungsten uranium vanadium velocity voltage X-ray analysis X-ray method X-ray Spectral Lines X-ray spectroscopy yttrium zirconium zircons