
1) Symbol for a proton
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Hydrogen ion is recommended by IUPAC as a general term for all ions of hydrogen and its isotopes. Depending on the charge of the ion, two different classes can be distinguished: positively charged ions and negatively charged ions. ==Cation (positively charged)== When hydrogen loses its electron, the following cations can be formed: In addition, th...
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http://en.wikipedia.org/wiki/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 ... [18 related articles]
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http://www.britannica.com/eb/a-z/h/88

The ion which is left when the hydrogen atom loses its electron, forming a proton. In water the hydrogen ion binds to the water molecules, producing H3O+. Compound which exhibit hydrogen bonding include water and amines.
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http://www.chemicalglossary.net/definition/890-Hydrogen_Ion

A hydrogen atom that has lost or gained an electron, and in consequence has a charge. The positive hydrogen ion (H
+), having lost its only electron, consists of just a proton. Chemically free hydrogen ions are rarely form and dissociation to H
+ occurs ...
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http://www.daviddarling.info/encyclopedia/H/hydrogen_ion.html

A hydrogen atom minus its electron and therefore carrying a unit positive charge (i.e., a proton); in water, it combines with a water molecule to form hydronium ion, H3O+. ... (05 Mar 2000) ...
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http://www.encyclo.co.uk/local/20973

The ion which is left when the hydrogen atom loses its electron, forming a proton. In water the hydrogen ion binds to the water molecules, producing H3O+. Compound which exhibit hydrogen bonding include water and amines.
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http://www.encyclo.co.uk/visitor-contributions.php
(H+) Type: Term Definitions: 1. a hydrogen atom minus its electron and therefore carrying a unit positive charge (a proton); in water, it combines with a water molecule to form hydronium ion, H
5O
2+, H
7O
3+, etc. &n...
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http://www.medilexicon.com/medicaldictionary.php?t=45588

[
n] - a positively charged atom of hydrogen
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http://www.webdictionary.co.uk/definition.php?query=hydrogen%20ion

ionized hydrogen of the form H⫀, found in aqueous solutions of all acids.
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https://www.infoplease.com/dictionary/hydrogen-ion
No exact match found.