Abstract
EXPERIMENTALLY determined values of the nuclear energy change for the transmutation of sulphur, chlorine and potassium are given by Dr. E. Pollard and C. J. Brasefield. These suggest that the energy levels are closer in nuclei of the type 4n than in more complex nuclei. The masses are derived for the majority of nuclei from neon to argon. Plotting departure of mass from whole number against nuclear mass number (Oliphant), these show indications of extra stability at each repetition of four units until 40A is reached, which is exceptional, indicating that the stability is due to a-particles and not to units of four irrespective of charge.
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Points from Foregoing Letters. Nature 137, 952 (1936). https://doi.org/10.1038/137952a0
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DOI: https://doi.org/10.1038/137952a0