A specific name for the atom
1H. The cation
1H+ is a proton, the species
1H is a protide anion, and
1H is the protio group. The word proton should not be used for
H+ in its natural abundance.
Source:
PAC, 1988, 60, 1115. 'Names for hydrogen atoms, ions, and groups, and for reactions involving them (Recommendations 1988)' on page 1116 (https://doi.org/10.1351/pac198860071115)