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Does $\rm H^+$ even produce emission spectrum without an electron?

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Does H+ even produce emission spectrum without an electron?

Without any electrons around, there would be no electronic emission spectra. E.g., the usual photon-based absorption and emission would not occur. E.g., we would not see the usual Balmer series, Lyman series, etc., since there can be no electronic spectra without electrons.

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  • $\begingroup$ Does it mean it doesn't have electronic absorption spectrum as well? $\endgroup$
    – PSz
    Dec 22, 2022 at 17:48
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    $\begingroup$ Yes, that is correct. The usual absorption "lines" (or "edges" in a solid) occur because electrons in bound states are excited to electronic continuum states. Without any electrons there would be none of the usual x-ray absorption lines either. $\endgroup$
    – hft
    Dec 22, 2022 at 17:49
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    $\begingroup$ ENDF finds no gamma levels for a proton. A more complex nucleus, yes, but a single proton? $\endgroup$
    – Jon Custer
    Dec 22, 2022 at 18:21
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    $\begingroup$ @JonCuster I wasn't aware... I'm a solid state guy, not a nuclear guy. I'll update. $\endgroup$
    – hft
    Dec 22, 2022 at 19:04
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    $\begingroup$ Proton excited states can decay by photon emission. physics.stackexchange.com/questions/528742/… $\endgroup$
    – John Doty
    Dec 22, 2022 at 20:01

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