from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The only stable isotope of phosphorus, 3115P, having fifteen protons and sixteen neutrons


Sorry, no etymologies found.


  • Once these exceptionally pure crystals were created, they then had to be doped with phosphorus-31 in specific areas of the crystal and to just the right amount - an undertaking that Ager compared to adding one extra person to Earth's population at one particular address.

    Scientific Blogging

  • To conduct their experiments, they have been working with individual spins of electrons of phosphorus-31 atoms contained in a very expensive, exceptionally pure and isotopically controlled silicon-28 crystal, Lyon said.

    The Daily Princetonian, 2009-06-03


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