Abstract
THE first experiments with selenium some time ago were not successful. Very satisfactory mass-spectra have now been obtained by vaporising the element itself in the discharge tube. The interpretation of these is quite simple and definite, so that the results may be stated with every confidence. Selenium consists of six isotopes, giving lines at 74 (f), 76 (c), 77 (e), 78 (b), 80 (a), 82 (d). The line at 74 is extremely faint. The intensities of the lines are in the order indicated by the letters, and agree well enough with the chemical atomic weight 79.2. Measurement of the lines shows no detectable deviation from the whole number rule.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
ASTON, F. The Isotopes of Selenium and some other Elements. Nature 110, 664 (1922). https://doi.org/10.1038/110664a0
Issue Date:
DOI: https://doi.org/10.1038/110664a0
Comments
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.