News | Published:

Points from Foregoing Letters

Nature volume 141, page 1103 (18 June 1938) | Download Citation



New values for the ‘packing fraction’ of atoms of titanium (mass 48), chromium (mass 52), nickel (mass 58) and bromine (mass 79 and 81) are given by Dr. F. W. Aston, as calculated from mass spectrographic measurements on doublets (electrically charged atoms and groups of atoms having the same mass/charge ratio). A knowledge of the packing fraction is necessary in calculating energy changes involved in atomic transmutations.

About this article

Publication history





    By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.

    Newsletter Get the most important science stories of the day, free in your inbox. Sign up for Nature Briefing