Are there any actual uses of isodiaphers?
In practical radiochemistry, the term is rarely needed but it is not useless. In particular, isodiaphers are used in radiochemistry to describe chains of alpha decays.
I would expect, the relative frequencies of the practical use of the related terms is about
&quot;isotopes&quot; &gt; &quot;isobars&quot; &gt; &quot;isodiaphers&quot; &gt; &quot;isotones&quot;.
Isobars are used in radiochemistry to describe chains of beta decay, therefore their importance might be similar to isodiaphers for alpha decay. However, isobars are also very important to describe fission yields so that in total they might be used more often than isodiaphers.