Meanings
nounproton number (plural proton numbers)
plural proton numbers
- The number of protons in an atom.
Synonyms: atomic number
Synonyms & antonyms
nounThe number of protons in an atom.
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Cite this entry
APA
proton number. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/proton%20number
MLA
“proton number.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/proton%20number. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “proton number,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/proton%20number.
Source: proton number on Wiktionary, CC BY-SA 4.0.