hydrogen ion definition

  • noun:
    • The positively charged ion of hydrogen, H+, created by elimination of the electron from atomic hydrogen and discovered throughout aqueous solutions of acids.
    • utilized apart from as an idiom: see hydrogen,‎ ion. ; H- or H+
    • a proton coupled with one or more water particles; often written H3O+ and labeled as the hydronium ion though is better thought to be H9O4+ but is often written H+(aq) for simplicity
    • a bare hydrogen nucleus; a proton , deuteron or triton
    • a positively charged atom of hydrogen; frankly, a normal hydrogen atomic nucleus

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