Abstract
IN a letter to NATURE (June 6) I gave the experimental evidence which led me to conclude that in ordinary actinium preparations a new substance was present which was slowly transformed into radium. By a chemical method this substance was separated from actinium, and a solution of the latter was obtained which showed no appreciable growth of radium over a period of eighty days. Observations on this solution have been continued over a total period of 240 days, and there is still no detectable increase in the quantity of radium. The growth of radium, if it occurs at all, is certainly less than 1/500 of that observed in other experiments.
Similar content being viewed by others
Article PDF
Change history
01 November 1907
In Prof. Rutherford's letter in NATURE of last week (October 31, p. 661, col. 2, line 23), for “picradium” read “preradium.”
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
RUTHERFORD, E. Origin of Radium. Nature 76, 661 (1907). https://doi.org/10.1038/076661b0
Issue Date:
DOI: https://doi.org/10.1038/076661b0
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.