In connection with acids, "hydrogen ions" typically refers to hydrons. In the image at left the hydrogen atom (center) contains a single proton and a single electron. Removal of the electron gives a cation (left), whereas addition of an electron gives an anion (right).

Hydrogen ion, strictly, the nucleus of a hydrogen atom separated from its accompanying electron. The hydrogen nucleus is made up of a particle carrying a unit of positive electric charge, called a proton.

The general term "hydron", endorsed by IUPAC, encompasses cations of hydrogen regardless of isotope: thus it refers collectively to protons (1 H +) for the protium isotope, deuterons (2 H + or D +) for the deuterium isotope, and tritons (3 H + or T +) for the tritium isotope.

2020年3月3日 · Technically, any atom or molecule can form both cations and anions. For example, a hydrogen atom usually has a +1 oxidation state, but sometimes it gains an electron and has a -1 charge! That being said, metals usually …

2021年10月14日 · It is a member of atomic nucleus, a monoatomic hydrogen, a monoatomic monocation and a monovalent inorganic cation. Hydrogen ion is a metabolite found in or produced by Escherichia coli (strain K12, MG1655). Hydron has been reported in Homo sapiens with data available. View More...

2023年7月16日 · A hydrogen ion, H +, is a hydrogen atom which has lost its single electron; that is, a hydrogen ion is just a proton. Because a proton is only about one ten-thousandth as big as an average atom or ion, water dipoles can approach very close to a hydrogen ion in solution.

Hydrogen atom (center) contains a single proton and a single electron. Removal of the electron gives a cation (left), whereas addition of an electron gives an anion (right) Hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. [1]