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Points from Foregoing Letters

    Naturevolume 140page158 (1937) | Download Citation



    THE isotopic and packing fraction of krypton atoms of mass 78, 82, 84, 86, and of xenon atoms of mass 129, have been determined by Dr. F. W. Aston, by comparison with hydrocarbon 'doublets', by means of the mass spectrograph.

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