An example of a proton is the single proton in the nucleus of a hydrogen atom.
Origin of proton
- From Greek prōton neuter of prōtos first per1 in Indo-European roots
From American Heritage Dictionary of the English Language, 5th Edition
- From Ancient Greek Ï€Ïá¿¶Ï„Î¿Î½ (prÅton), neuter of Ï€Ïá¿¶Ï„Î¿Ï‚ (prÅtos, “first")