Hydron (chemistry)

Hydron
Names
Systematic IUPAC name
Hydron[1] (substitutive)
Hydrogen(1+)[1] (additive)
Other names
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
KEGG
UNII
  • InChI=1S/p+1 checkY
    Key: GPRLSGONYQIRFK-UHFFFAOYSA-N checkY
  • [H+]
Properties
H+
Molar mass 1.007 g·mol−1
Thermochemistry
108.95 J K−1 mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

In chemistry, the hydron, informally called proton,[2] is the cationic form of atomic hydrogen, represented with the symbol H+
. The general term "hydron", endorsed by IUPAC, encompasses cations of hydrogen regardless of isotope: thus it refers collectively to protons (1H+) for the protium isotope, deuterons (2H+ or D+) for the deuterium isotope, and tritons (3H+ or T+) for the tritium isotope.

Unlike most other ions, the hydron consists only of a bare atomic nucleus. The negatively charged counterpart of the hydron is the hydride anion, H−
.

  1. ^ a b "hydron (CHEBI:15378)". Chemical Entities of Biological Interest (ChEBI). UK: European Bioinformatics Institute.
  2. ^ Cite error: The named reference iupac1988proton was invoked but never defined (see the help page).