TERMIUM Plus®

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ION H [1 record]

Record 1 2010-06-04

English

Subject field(s)
  • Chemistry
Universal entry(ies)
DEF

The positively charged ion in all acids.

OBS

For simplicity, the hydrogen ion is usually designated by the symbol H+.

OBS

Not to be confused with hydronium ion (H3O+) which is the form taken by H+ when combined with water; it must be remembered that, on the other hand, hydronium ion is usually called, for simplicity sake, hydrogen ion.

French

Domaine(s)
  • Chimie
Entrée(s) universelle(s)
CONT

L'ion hydrogène H+, ou proton, est le noyau de l'atome d'hydrogène. Il ne semble pas que le proton puisse exister à l'état libre dans un solvant comme l'eau. Il s'associe en effet à une molécule d'eau, qui joue le rôle de base (accepteur de protons), pour former l'ion hydronium H3O+, ou ion hydrogène hydrate [...]. L'eau peut jouer le rôle d'acide (donneur de protons) [...]

OBS

pluriel : des ions hydrogène.

Spanish

Campo(s) temático(s)
  • Química
Entrada(s) universal(es)
DEF

Ión de carga positiva [...]

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