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hydrogen ion

hydrogen ion

4.9
A tiny particle with a positive charge that is one proton from a hydrogen atom
  • noun
  • /ˈhaɪdrədʒən aɪən/
  • Specialized
translation icon : ion de hidrógeno
  • And that shouldn't be surprising, just as glucose really tightly regulated, pH or hydrogen ion concentration really tightly regulated.
  • hydrogen ion concentration

Now the way that hydrogen ion gradient is created is through, you know, creating hydrogen, hydrogen ions that can be donated through the Krebs cycle.

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Examples

  • In an acidic solution, the concentration of hydrogen ions determines the pH level.

  • They can split into hydrogen ions and hydroxide ions, and pure water has equal concentrations amounts of these.

  • And that gas is related to all acids because all acids contain hydrogen ions, as we have discovered.

  • And we have hydrogen ion gradients across that membrane.

  • That's telling us something about the concentration of hydrogen ions in the water.

  • Collect your hydrogen-ion concentration (pH) data and enter it in a third table.

    Academic text (1995)
  • Hydrogen-ion concentration (pH) readings were also taken twice in the same manner.

    Academic text (1995)
  • Sphagnum moss may also increase and exacerbate the acidification, adding hydrogen ions to the system (a positive feedback) (Muniz 1991).

    Academic text (2000)
  • When water molecules dissociate, they produce hydrogen ions and hydroxide ions.

  • The presence of hydrogen ions in the soil can affect plant growth and nutrient availability.

Synonyms

proton
vshydrogen ion
  • Specialized
63 4.5

A very small part of an atom with a positive charge located in the center

describes the same particle as a charged form produced when an atom loses its electron

Surface Forms

hydrogen ion singular
hydrogen ions plural

Morphology

hydrogen + ion

The compound is fully compositional: 'hydrogen' (the element) + 'ion' (a charged atom) yields the straightforward meaning 'a charged hydrogen atom/particle.' A B1 learner who knows both constituents can infer this basic sense even if they might not grasp the technical detail that it is specifically a single proton.

Etymology

Hydrogen ion is a simple picture: when a hydrogen atom loses its single electron, it is left as just a lone proton, so it becomes an ion. So a hydrogen ion is literally a single 'proton' and is 'positively charged', which is why their number matters when we talk about how acidic water or other liquids are.