On Tuesday, 18 Feb 2020 at 00:43, VanL wrote:
> Question for the list.  Can the HAL/S notation be used for editing a
> symbol, in expanded form, with prefix/postfix sub/superscript?  The
> collapsed form is a single line pretty printing tiny sub/superscript
> before and after the symbol.

Maybe (probably?) not what you are looking for but if you want something
that meets the output requirements for LaTeX export (i.e. to PDF), you
can use the =mhchem= package [1] and typing

    \(\ce{^{21}Ne}\) and \(\ce{^{3}He}\)

will generate what you want.

No special editing unfortunately.

HTH,
eric

Footnotes:
[1]  https://www.ctan.org/pkg/mhchem?lang=en

-- 
: Eric S Fraga via Emacs 28.0.50, Org release_9.3.6-316-g5dd772

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