∞ generated and posted on 2016.12.19 ∞
Another name for proton.
A hydrogen atom consists of a combination of a proton and an electron. Hydrogen ions, or their equivalent, are key players in the determination of pH.
Figure legend: Shown is the reversible dissociation of a hydrogen atom into a combination of proton, a.k.a., hydrogen ion or H+, and an electron (e-).