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Autoionization is a common phenomenon in chemistry, and I am guessing that autoionization is less frequently invoked term in physics. A quick check seems to confirm this perspective. Thus, I am recommending that Molecular autoionization be changed to "Autoionization" and the current "autoionization" be changed to Autoionization (physics) or Autoionization (excited state).
By that switch, readers expeditiously find the article they most likely are looking for.--Smokefoot (talk) 17:12, 23 October 2017 (UTC)
Perhaps Autoionization should be a disambiguation page, leading to (1) Autoionization (chemistry) or Autoionization (bimolecular) and (2) Autoionization (physics) or Autoionization (excited state). Dirac66 (talk) 22:57, 23 October 2017 (UTC)
Sounds good to me. Isn't the chemistry version always bi- (or higher)molecular?--Smokefoot (talk) 00:02, 24 October 2017 (UTC)
Yes, but the physics version is unimolecular or uniatomic. Therefore bimolecular is a possible title to specify the chemistry version. Dirac66 (talk) 00:27, 24 October 2017 (UTC)