Talk:Cosmic ray spallation

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Editing artifact?[edit]

In the first paragraph, "...ranging from protons, alpha particles, and nuclei of many heavier elements" doesn't make sense. There isn't any to "to" to match with the "from".

Pollifax (talk) 06:42, 31 July 2013 (UTC)[reply]

Technetium should be man-made on the periodic table.[edit]

On earth at least it is entirely synthetic, and though it is possible that it has a transiant existence in cosmic events like supernovae the same is true of all elements. I think that periodic table should reflect the sources of teh elements on earth. Technetium has far to short a half-life to have a cosmogenic origin.

§ — Preceding unsigned comment added by Michalchik (talk • contribs) 08:05, 13 November 2015 (UTC)[reply]