Structure via PubChem · Public domain (PubChem)
hydron
Also known as H+, hydrogen cation, hydrogen ion, proton, H⁺, hydrogen(I) ion, hydrogen(1+)
In chemistry, the hydron, informally called proton, is the cationic form of atomic hydrogen, represented with the symbol . The general term "hydron", endorsed by IUPAC, encompasses cations of hydrogen regardless of isotope: thus it refers collectively to protons (H) for the protium isotope, deuterons (H or D) for the deuterium isotope, and tritons (H or T) for the tritium isotope.
Chemical data
- Formula
- H+
- Molecular weight
- 1.008 g/mol
- IUPAC name
- hydron
- SMILES
- [H+]
- InChIKey
- GPRLSGONYQIRFK-UHFFFAOYSA-N
- XLogP
- 0
- Polar surface area
- 0 Ų
- H-bond donors
- 1
- H-bond acceptors
- 0
- Formal charge
- 1
via PubChem
Wikidata facts
- Mass
- 1.007825
~5 min read
Article
7 sectionsContents
- Properties
- Solute properties
- Acidity
- Isotopes of hydron
- History of the term
- See also
- References
In chemistry, the hydron, informally called proton, is the cationic form of atomic hydrogen, represented with the symbol . The general term "hydron", endorsed by IUPAC, encompasses cations of hydrogen regardless of isotope: thus it refers collectively to protons (H) for the protium isotope, deuterons (H or D) for the deuterium isotope, and tritons (H 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, .