Talk:Isotopes of iron

Superscript "m"
Could someone please tell me what the "m" in 53mFe signifies?

Thanks, Nick Beeson (talk) 15:38, 18 November 2008 (UTC)
 * I just saw this question from 3 years ago. m = metastable = a long-lived excited state. See Nuclear isomer. And yes, this really should be explained with the table, in this article and in all the articles Isotopes of element X. Dirac66 (talk) 20:00, 12 November 2011 (UTC)

Iron-56
This section is to discuss whether Iron-56 should be merged into this article--Robert Treat (talk) 00:56, 21 August 2011 (UTC).

Iron-57m
The article mentions that Fe-57 is used in Mossbauer spectroscopy. Should the table of iron isotopes not include the Fe-57m state which is the upper energy level of the Mossbauer gamma-ray emission? Dirac66 (talk) 20:06, 12 November 2011 (UTC)

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