Abstract
DURING the study by me of critical potentials in metallic vapours (Phys. Rev., August 1928), it was noticed that positive ions were given off by heated metals and that these ions persisted for very long periods of heat treatment. A determination of e/m of the positive ions from heated metals gives the following results. Copper, iron, nickel, and platinum when heated, give alkaline ions only, as has been found by other observers. Tungsten, molybdenum, and tantalum when heated to a temperature where vaporisation becomes appreciable, give ions the atomic weights of which agree with that of the metal emitting them. Other metals are under investigation.
Similar content being viewed by others
Article PDF
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
WAHLIN, H. The Emission of Positive Ions from Metals. Nature 123, 912 (1929). https://doi.org/10.1038/123912d0
Issue Date:
DOI: https://doi.org/10.1038/123912d0
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.