hydrogen ion(redirected from Zundel cation)
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The positively charged ion of hydrogen, H+, formed by removal of the electron from atomic hydrogen and found in the form of hydronium ion in all aqueous solutions of acids.
1. (Elements & Compounds) an ionized hydrogen atom, occurring in plasmas and in aqueous solutions of acids, in which it is solvated by one or more water molecules; proton. Formula: H+
2. (Elements & Compounds) an ionized hydrogen molecule; hydrogen molecular ion. Formula: H2+
ionized hydrogen of the form H + , found in aqueous solutions of all acids.