"Nitrogen"^^ . . "C0028158"^^ . . "7727-37-9"^^ . "NITROGENPTFDAN762921K75" . "An element with atomic symbol N, atomic number 7, and atomic weight 14.01.NCI" . "Nitrogen"^^ . . "Nitrogen"^^ . "C61863"^^ . "CHEBI:25555"^^ . "CHEBI:17997"^^ . . "FDA"^^ . "Element, Ion, or Isotope"^^ . "N2"^^ . . . "NitrogenPTNCI" . "N762921K75"^^ .