Submitted by György Chityil ... on Fri, 01/19/2018 - 23:54 Hierarchy: NounDescription: {{isotope}} The only stable isotope of phosphorus, {{nuclide|31|15|P}}, having fifteen protons and sixteen neutronsNgram: phosphorus-31Ngram Text: phosphorus-31Source: WiktionaryIssue: 0Wiktionary tag: isotopenuclide15pNgram Count: 1