hydrogen ion Rate this phrase:(1.00 / 1 vote)
a bare hydrogen nucleus; a proton , deuteron or triton

Additional definitions for 'hydrogen ion':

hydrogen ionUsed other than as an idiom: see hydrogen, ion. ; H or H
hydrogen iona proton combined with one or more water molecules; usually written H3O and called the hydronium ion though is best considered as H9O4 but is often written H(aq) for simplicity
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"hydrogen ion." Phrases.net. STANDS4 LLC, 2018. Web. 19 Aug. 2018. <https://www.phrases.net/phrase/hydrogen-ion_13083>.

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