Why are you arguing with me on this point?
The IUPAC link for your source is https://goldbook.iupac.org/terms/view/M03980
if you click on the "source" link at the end it takes you to this https://www.bipm.org/utils/common/pdf/si-brochure/SI-Brochure-9-EN.pdf
page 134 is verbatim of your link with this additional sentence your online link left off.
"The effect of this definition is that the mole is the amount of substance of a system that
contains 6.022 140 76 × 1023 specified elementary entities."
page 172 states
When the mole is used, the elementary entities must be specified
and MAY BE
molecules, ions, electrons, other particles, or specified groups of such particles.
Clearly you can see the words "specified elementary entities" and "elementary entities must be specified" and "may be" right there in black and white (and red). The meaning of this definition is (1) after you specify the elementary entity, then (2) 1 mole of those entities = 6.02214076x10^23 entities. NO where in either of those links or any chemistry literature anywhere does it say "for the definition of moles, the term elementary entities IS LIMITED TO atoms, electrons, protons, etc".
Furthermore, the IUPAC update you're referencing is related to Avogadro's number as based on a fixed numerical value rather than the the number of atoms in 0.012kg of C-12 atoms. 1 mol is still Avogadro's number of "specified elementary entities"
it's like you're arguing.. "all bakers may only use the term dozen
only when referencing 12 eggs or 12 cookies. Dozen cannot be used for donuts, bagels, loaves of bread or by non-bakers for anything else" And then giving a reference that says "in the past we based dozen on the number of cookies in exactly 12g of 1g chocolate chip cookies. Now we're basing it on the number 12".
Again.. this is covered in EVERY general chemistry textbook in use today. Everyone who completes gen chem sees this material. I read your response and shake my head wondering... why would you argue this ridiculous point? Maybe you can explain that one.